llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang-tidy

@llvm/pr-subscribers-clang-tools-extra

Author: Ondřej Štorc (ostorc)

<details>
<summary>Changes</summary>

This PR closes #<!-- -->170979.  

---
Full diff: https://github.com/llvm/llvm-project/pull/170986.diff


17 Files Affected:

- (modified) clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp (+2-2) 
- (modified) clang-tools-extra/clang-tidy/fuchsia/FuchsiaTidyModule.cpp (+2-2) 
- (modified) clang-tools-extra/clang-tidy/google/CMakeLists.txt (-1) 
- (modified) clang-tools-extra/clang-tidy/google/GoogleTidyModule.cpp (+2-2) 
- (modified) clang-tools-extra/clang-tidy/misc/CMakeLists.txt (+1) 
- (modified) clang-tools-extra/clang-tidy/misc/MiscTidyModule.cpp (+3) 
- (renamed) clang-tools-extra/clang-tidy/misc/UnnamedNamespaceInHeaderCheck.cpp 
(+2-2) 
- (renamed) clang-tools-extra/clang-tidy/misc/UnnamedNamespaceInHeaderCheck.h 
(+6-6) 
- (modified) clang-tools-extra/docs/ReleaseNotes.rst (+5) 
- (modified) clang-tools-extra/docs/clang-tidy/checks/cert/dcl59-cpp.rst (+2-2) 
- (modified) 
clang-tools-extra/docs/clang-tidy/checks/fuchsia/header-anon-namespaces.rst 
(+2-2) 
- (modified) 
clang-tools-extra/docs/clang-tidy/checks/google/build-namespaces.rst (+6-9) 
- (modified) clang-tools-extra/docs/clang-tidy/checks/list.rst (+4-3) 
- (added) 
clang-tools-extra/docs/clang-tidy/checks/misc/anonymous-namespace-in-header.rst 
(+14) 
- (modified) clang-tools-extra/test/clang-tidy/checkers/google/namespaces.cpp 
(-4) 
- (renamed) 
clang-tools-extra/test/clang-tidy/checkers/misc/Inputs/anon-namespaces.h () 
- (added) clang-tools-extra/test/clang-tidy/checkers/misc/namespaces.cpp (+3) 


``````````diff
diff --git a/clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp 
b/clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
index 16d4be9802cc6..bc570cd59450e 100644
--- a/clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
@@ -31,12 +31,12 @@
 #include "../bugprone/UnsafeFunctionsCheck.h"
 #include "../bugprone/UnusedReturnValueCheck.h"
 #include "../concurrency/ThreadCanceltypeAsynchronousCheck.h"
-#include "../google/UnnamedNamespaceInHeaderCheck.h"
 #include "../misc/NewDeleteOverloadsCheck.h"
 #include "../misc/NonCopyableObjectsCheck.h"
 #include "../misc/PredictableRandCheck.h"
 #include "../misc/StaticAssertCheck.h"
 #include "../misc/ThrowByValueCatchByReferenceCheck.h"
+#include "../misc/UnnamedNamespaceInHeaderCheck.h"
 #include "../modernize/AvoidSetjmpLongjmpCheck.h"
 #include "../modernize/AvoidVariadicFunctionsCheck.h"
 #include "../performance/MoveConstructorInitCheck.h"
@@ -253,7 +253,7 @@ class CERTModule : public ClangTidyModule {
         "cert-dcl54-cpp");
     CheckFactories.registerCheck<bugprone::StdNamespaceModificationCheck>(
         "cert-dcl58-cpp");
-    CheckFactories.registerCheck<google::build::UnnamedNamespaceInHeaderCheck>(
+    CheckFactories.registerCheck<misc::build::UnnamedNamespaceInHeaderCheck>(
         "cert-dcl59-cpp");
     // ERR
     CheckFactories.registerCheck<misc::ThrowByValueCatchByReferenceCheck>(
diff --git a/clang-tools-extra/clang-tidy/fuchsia/FuchsiaTidyModule.cpp 
b/clang-tools-extra/clang-tidy/fuchsia/FuchsiaTidyModule.cpp
index c62c43f0c42a3..20d86b6cf38ab 100644
--- a/clang-tools-extra/clang-tidy/fuchsia/FuchsiaTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/fuchsia/FuchsiaTidyModule.cpp
@@ -9,7 +9,7 @@
 #include "../ClangTidy.h"
 #include "../ClangTidyModule.h"
 #include "../ClangTidyModuleRegistry.h"
-#include "../google/UnnamedNamespaceInHeaderCheck.h"
+#include "../misc/UnnamedNamespaceInHeaderCheck.h"
 #include "DefaultArgumentsCallsCheck.h"
 #include "DefaultArgumentsDeclarationsCheck.h"
 #include "MultipleInheritanceCheck.h"
@@ -32,7 +32,7 @@ class FuchsiaModule : public ClangTidyModule {
         "fuchsia-default-arguments-calls");
     CheckFactories.registerCheck<DefaultArgumentsDeclarationsCheck>(
         "fuchsia-default-arguments-declarations");
-    CheckFactories.registerCheck<google::build::UnnamedNamespaceInHeaderCheck>(
+    CheckFactories.registerCheck<misc::build::UnnamedNamespaceInHeaderCheck>(
         "fuchsia-header-anon-namespaces");
     CheckFactories.registerCheck<MultipleInheritanceCheck>(
         "fuchsia-multiple-inheritance");
diff --git a/clang-tools-extra/clang-tidy/google/CMakeLists.txt 
b/clang-tools-extra/clang-tidy/google/CMakeLists.txt
index 1d4229ebb7b09..4335cf4aa11f9 100644
--- a/clang-tools-extra/clang-tidy/google/CMakeLists.txt
+++ b/clang-tools-extra/clang-tidy/google/CMakeLists.txt
@@ -19,7 +19,6 @@ add_clang_library(clangTidyGoogleModule STATIC
   IntegerTypesCheck.cpp
   OverloadedUnaryAndCheck.cpp
   TodoCommentCheck.cpp
-  UnnamedNamespaceInHeaderCheck.cpp
   UpgradeGoogletestCaseCheck.cpp
   UsingNamespaceDirectiveCheck.cpp
 
diff --git a/clang-tools-extra/clang-tidy/google/GoogleTidyModule.cpp 
b/clang-tools-extra/clang-tidy/google/GoogleTidyModule.cpp
index aff8b45ff2f74..8749cea94c899 100644
--- a/clang-tools-extra/clang-tidy/google/GoogleTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/google/GoogleTidyModule.cpp
@@ -9,6 +9,7 @@
 #include "../ClangTidy.h"
 #include "../ClangTidyModule.h"
 #include "../ClangTidyModuleRegistry.h"
+#include "../misc/UnnamedNamespaceInHeaderCheck.h"
 #include "../readability/BracesAroundStatementsCheck.h"
 #include "../readability/FunctionSizeCheck.h"
 #include "../readability/NamespaceCommentCheck.h"
@@ -26,7 +27,6 @@
 #include "IntegerTypesCheck.h"
 #include "OverloadedUnaryAndCheck.h"
 #include "TodoCommentCheck.h"
-#include "UnnamedNamespaceInHeaderCheck.h"
 #include "UpgradeGoogletestCaseCheck.h"
 #include "UsingNamespaceDirectiveCheck.h"
 
@@ -40,7 +40,7 @@ class GoogleModule : public ClangTidyModule {
   void addCheckFactories(ClangTidyCheckFactories &CheckFactories) override {
     CheckFactories.registerCheck<build::ExplicitMakePairCheck>(
         "google-build-explicit-make-pair");
-    CheckFactories.registerCheck<build::UnnamedNamespaceInHeaderCheck>(
+    CheckFactories.registerCheck<misc::build::UnnamedNamespaceInHeaderCheck>(
         "google-build-namespaces");
     CheckFactories.registerCheck<build::UsingNamespaceDirectiveCheck>(
         "google-build-using-namespace");
diff --git a/clang-tools-extra/clang-tidy/misc/CMakeLists.txt 
b/clang-tools-extra/clang-tidy/misc/CMakeLists.txt
index e8705aada3f22..94cede12da4d5 100644
--- a/clang-tools-extra/clang-tidy/misc/CMakeLists.txt
+++ b/clang-tools-extra/clang-tidy/misc/CMakeLists.txt
@@ -39,6 +39,7 @@ add_clang_library(clangTidyMiscModule STATIC
   ThrowByValueCatchByReferenceCheck.cpp
   UnconventionalAssignOperatorCheck.cpp
   UniqueptrResetReleaseCheck.cpp
+  UnnamedNamespaceInHeaderCheck.cpp
   UnusedAliasDeclsCheck.cpp
   UnusedParametersCheck.cpp
   UnusedUsingDeclsCheck.cpp
diff --git a/clang-tools-extra/clang-tidy/misc/MiscTidyModule.cpp 
b/clang-tools-extra/clang-tidy/misc/MiscTidyModule.cpp
index 03f25775de0bf..157411e9ac36b 100644
--- a/clang-tools-extra/clang-tidy/misc/MiscTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/misc/MiscTidyModule.cpp
@@ -29,6 +29,7 @@
 #include "ThrowByValueCatchByReferenceCheck.h"
 #include "UnconventionalAssignOperatorCheck.h"
 #include "UniqueptrResetReleaseCheck.h"
+#include "UnnamedNamespaceInHeaderCheck.h"
 #include "UnusedAliasDeclsCheck.h"
 #include "UnusedParametersCheck.h"
 #include "UnusedUsingDeclsCheck.h"
@@ -41,6 +42,8 @@ namespace misc {
 class MiscModule : public ClangTidyModule {
 public:
   void addCheckFactories(ClangTidyCheckFactories &CheckFactories) override {
+    CheckFactories.registerCheck<build::UnnamedNamespaceInHeaderCheck>(
+        "misc-anonymous-namespace-in-header");
     CheckFactories.registerCheck<ConfusableIdentifierCheck>(
         "misc-confusable-identifiers");
     CheckFactories.registerCheck<ConstCorrectnessCheck>(
diff --git 
a/clang-tools-extra/clang-tidy/google/UnnamedNamespaceInHeaderCheck.cpp 
b/clang-tools-extra/clang-tidy/misc/UnnamedNamespaceInHeaderCheck.cpp
similarity index 94%
rename from 
clang-tools-extra/clang-tidy/google/UnnamedNamespaceInHeaderCheck.cpp
rename to clang-tools-extra/clang-tidy/misc/UnnamedNamespaceInHeaderCheck.cpp
index 054bdc8d1230e..6bba314b5d947 100644
--- a/clang-tools-extra/clang-tidy/google/UnnamedNamespaceInHeaderCheck.cpp
+++ b/clang-tools-extra/clang-tidy/misc/UnnamedNamespaceInHeaderCheck.cpp
@@ -12,7 +12,7 @@
 
 using namespace clang::ast_matchers;
 
-namespace clang::tidy::google::build {
+namespace clang::tidy::misc::build {
 
 UnnamedNamespaceInHeaderCheck::UnnamedNamespaceInHeaderCheck(
     StringRef Name, ClangTidyContext *Context)
@@ -37,4 +37,4 @@ void UnnamedNamespaceInHeaderCheck::check(
     diag(Loc, "do not use unnamed namespaces in header files");
 }
 
-} // namespace clang::tidy::google::build
+} // namespace clang::tidy::misc::build
diff --git 
a/clang-tools-extra/clang-tidy/google/UnnamedNamespaceInHeaderCheck.h 
b/clang-tools-extra/clang-tidy/misc/UnnamedNamespaceInHeaderCheck.h
similarity index 74%
rename from clang-tools-extra/clang-tidy/google/UnnamedNamespaceInHeaderCheck.h
rename to clang-tools-extra/clang-tidy/misc/UnnamedNamespaceInHeaderCheck.h
index 78e8127a5a342..0225922083d0c 100644
--- a/clang-tools-extra/clang-tidy/google/UnnamedNamespaceInHeaderCheck.h
+++ b/clang-tools-extra/clang-tidy/misc/UnnamedNamespaceInHeaderCheck.h
@@ -6,13 +6,13 @@
 //
 
//===----------------------------------------------------------------------===//
 
-#ifndef 
LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_UNNAMEDNAMESPACEINHEADERCHECK_H
-#define 
LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_UNNAMEDNAMESPACEINHEADERCHECK_H
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNNAMEDNAMESPACEINHEADERCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNNAMEDNAMESPACEINHEADERCHECK_H
 
 #include "../ClangTidyCheck.h"
 #include "../utils/FileExtensionsUtils.h"
 
-namespace clang::tidy::google::build {
+namespace clang::tidy::misc::build {
 
 /// Finds anonymous namespaces in headers.
 ///
@@ -21,7 +21,7 @@ namespace clang::tidy::google::build {
 /// Corresponding cpplint.py check name: 'build/namespaces'.
 ///
 /// For the user-facing documentation see:
-/// https://clang.llvm.org/extra/clang-tidy/checks/google/build-namespaces.html
+/// https://clang.llvm.org/extra/clang-tidy/checks/misc/build-namespaces.html
 class UnnamedNamespaceInHeaderCheck : public ClangTidyCheck {
 public:
   UnnamedNamespaceInHeaderCheck(StringRef Name, ClangTidyContext *Context);
@@ -35,6 +35,6 @@ class UnnamedNamespaceInHeaderCheck : public ClangTidyCheck {
   FileExtensionsSet HeaderFileExtensions;
 };
 
-} // namespace clang::tidy::google::build
+} // namespace clang::tidy::misc::build
 
-#endif // 
LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_UNNAMEDNAMESPACEINHEADERCHECK_H
+#endif // 
LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_UNNAMEDNAMESPACEINHEADERCHECK_H
diff --git a/clang-tools-extra/docs/ReleaseNotes.rst 
b/clang-tools-extra/docs/ReleaseNotes.rst
index 42160fa9cb51c..9d2ed11a4044a 100644
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -328,6 +328,11 @@ New check aliases
   <clang-tidy/checks/bugprone/copy-constructor-mutates-argument>`
   keeping initial check as an alias to the new one.
 
+- Renamed :doc:`google-build-namespaces` to
+  :doc:`misc-anonymous-namespace-in-header
+  <clang-tidy/checks/misc/anonymous-namespace-in-header>`
+  keeping initial check as an alias to the new one.
+
 Changes in existing checks
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
diff --git a/clang-tools-extra/docs/clang-tidy/checks/cert/dcl59-cpp.rst 
b/clang-tools-extra/docs/clang-tidy/checks/cert/dcl59-cpp.rst
index 027d2eca09195..ee66ec92f8478 100644
--- a/clang-tools-extra/docs/clang-tidy/checks/cert/dcl59-cpp.rst
+++ b/clang-tools-extra/docs/clang-tidy/checks/cert/dcl59-cpp.rst
@@ -1,10 +1,10 @@
 .. title:: clang-tidy - cert-dcl59-cpp
 .. meta::
-   :http-equiv=refresh: 5;URL=../google/build-namespaces.html
+   :http-equiv=refresh: 5;URL=../misc/anonymous-namespace-in-header.html
 
 cert-dcl59-cpp
 ==============
 
 The `cert-dcl59-cpp` check is an alias, please see
-:doc:`google-build-namespaces <../google/build-namespaces>`
+:doc:`misc-anonymous-namespace-in-header 
<../misc/anonymous-namespace-in-header>`
 for more information.
diff --git 
a/clang-tools-extra/docs/clang-tidy/checks/fuchsia/header-anon-namespaces.rst 
b/clang-tools-extra/docs/clang-tidy/checks/fuchsia/header-anon-namespaces.rst
index a92f3f411c031..44cd73259c2fd 100644
--- 
a/clang-tools-extra/docs/clang-tidy/checks/fuchsia/header-anon-namespaces.rst
+++ 
b/clang-tools-extra/docs/clang-tidy/checks/fuchsia/header-anon-namespaces.rst
@@ -1,10 +1,10 @@
 .. title:: clang-tidy - fuchsia-header-anon-namespaces
 .. meta::
-   :http-equiv=refresh: 5;URL=../google/build-namespaces.html
+   :http-equiv=refresh: 5;URL=../misc/anonymous-namespace-in-header.html
 
 fuchsia-header-anon-namespaces
 ==============================
 
 The fuchsia-header-anon-namespaces check is an alias, please see
-:doc:`google-build-namespace <../google/build-namespaces>`
+:doc:`misc-anonymous-namespace-in-header 
<../misc/anonymous-namespace-in-header>`
 for more information.
diff --git 
a/clang-tools-extra/docs/clang-tidy/checks/google/build-namespaces.rst 
b/clang-tools-extra/docs/clang-tidy/checks/google/build-namespaces.rst
index b421d992d63a6..3f89491d398db 100644
--- a/clang-tools-extra/docs/clang-tidy/checks/google/build-namespaces.rst
+++ b/clang-tools-extra/docs/clang-tidy/checks/google/build-namespaces.rst
@@ -1,13 +1,10 @@
 .. title:: clang-tidy - google-build-namespaces
+.. meta::
+   :http-equiv=refresh: 5;URL=../misc/anonymous-namespace-in-header.html
 
 google-build-namespaces
-=======================
+==============
 
-`cert-dcl59-cpp` redirects here as an alias for this check.
-`fuchsia-header-anon-namespaces` redirects here as an alias for this check.
-
-Finds anonymous namespaces in headers.
-
-https://google.github.io/styleguide/cppguide.html#Namespaces
-
-Corresponding cpplint.py check name: `build/namespaces`.
+The `google-build-namespaces` check is an alias, please see
+:doc:`misc-anonymous-namespace-in-header 
<../misc/anonymous-namespace-in-header>`
+for more information.
diff --git a/clang-tools-extra/docs/clang-tidy/checks/list.rst 
b/clang-tools-extra/docs/clang-tidy/checks/list.rst
index 8bb112f3d1832..9475dfba36000 100644
--- a/clang-tools-extra/docs/clang-tidy/checks/list.rst
+++ b/clang-tools-extra/docs/clang-tidy/checks/list.rst
@@ -229,7 +229,7 @@ Clang-Tidy Checks
    :doc:`fuchsia-trailing-return <fuchsia/trailing-return>`,
    :doc:`fuchsia-virtual-inheritance <fuchsia/virtual-inheritance>`,
    :doc:`google-build-explicit-make-pair <google/build-explicit-make-pair>`,
-   :doc:`google-build-namespaces <google/build-namespaces>`,
+   :doc:`misc-anonymous-namespace-in-header 
<misc/anonymous-namespace-in-header>`,
    :doc:`google-build-using-namespace <google/build-using-namespace>`,
    :doc:`google-default-arguments <google/default-arguments>`,
    :doc:`google-explicit-constructor <google/explicit-constructor>`, "Yes"
@@ -446,7 +446,7 @@ Check aliases
    :doc:`cert-dcl51-cpp <cert/dcl51-cpp>`, :doc:`bugprone-reserved-identifier 
<bugprone/reserved-identifier>`, "Yes"
    :doc:`cert-dcl54-cpp <cert/dcl54-cpp>`, :doc:`misc-new-delete-overloads 
<misc/new-delete-overloads>`,
    :doc:`cert-dcl58-cpp <cert/dcl58-cpp>`, 
:doc:`bugprone-std-namespace-modification 
<bugprone/std-namespace-modification>`,
-   :doc:`cert-dcl59-cpp <cert/dcl59-cpp>`, :doc:`google-build-namespaces 
<google/build-namespaces>`,
+   :doc:`cert-dcl59-cpp <cert/dcl59-cpp>`, 
:doc:`misc-anonymous-namespace-in-header <misc/anonymous-namespace-in-header>`,
    :doc:`cert-env33-c <cert/env33-c>`, :doc:`bugprone-command-processor 
<bugprone/command-processor>`,
    :doc:`cert-err09-cpp <cert/err09-cpp>`, 
:doc:`misc-throw-by-value-catch-by-reference 
<misc/throw-by-value-catch-by-reference>`,
    :doc:`cert-err34-c <cert/err34-c>`, 
:doc:`bugprone-unchecked-string-to-number-conversion 
<bugprone/unchecked-string-to-number-conversion>`,
@@ -583,7 +583,8 @@ Check aliases
    :doc:`cppcoreguidelines-noexcept-swap <cppcoreguidelines/noexcept-swap>`, 
:doc:`performance-noexcept-swap <performance/noexcept-swap>`, "Yes"
    :doc:`cppcoreguidelines-non-private-member-variables-in-classes 
<cppcoreguidelines/non-private-member-variables-in-classes>`, 
:doc:`misc-non-private-member-variables-in-classes 
<misc/non-private-member-variables-in-classes>`,
    :doc:`cppcoreguidelines-use-default-member-init 
<cppcoreguidelines/use-default-member-init>`, 
:doc:`modernize-use-default-member-init <modernize/use-default-member-init>`, 
"Yes"
-   :doc:`fuchsia-header-anon-namespaces <fuchsia/header-anon-namespaces>`, 
:doc:`google-build-namespaces <google/build-namespaces>`,
+   :doc:`fuchsia-header-anon-namespaces <fuchsia/header-anon-namespaces>`, 
:doc:`misc-anonymous-namespace-in-header <misc/anonymous-namespace-in-header>`,
+   :doc:`google-build-namespaces <google/build-namespaces>`, 
:doc:`misc-anonymous-namespace-in-header <misc/anonymous-namespace-in-header>`,
    :doc:`google-readability-braces-around-statements 
<google/readability-braces-around-statements>`, 
:doc:`readability-braces-around-statements 
<readability/braces-around-statements>`, "Yes"
    :doc:`google-readability-function-size <google/readability-function-size>`, 
:doc:`readability-function-size <readability/function-size>`,
    :doc:`google-readability-namespace-comments 
<google/readability-namespace-comments>`, :doc:`llvm-namespace-comment 
<llvm/namespace-comment>`,
diff --git 
a/clang-tools-extra/docs/clang-tidy/checks/misc/anonymous-namespace-in-header.rst
 
b/clang-tools-extra/docs/clang-tidy/checks/misc/anonymous-namespace-in-header.rst
new file mode 100644
index 0000000000000..796642adc095f
--- /dev/null
+++ 
b/clang-tools-extra/docs/clang-tidy/checks/misc/anonymous-namespace-in-header.rst
@@ -0,0 +1,14 @@
+.. title:: clang-tidy - anonymous-namespace-in-header
+
+anonymous-namespace-in-header
+=============================
+
+`cert-dcl59-cpp` redirects here as an alias for this check.
+`fuchsia-header-anon-namespaces` redirects here as an alias for this check.
+`google-build-namespaces` redirects here as an alias for this check.
+
+Finds anonymous namespaces in headers.
+
+https://google.github.io/styleguide/cppguide.html#Namespaces
+
+Corresponding cpplint.py check name: `build/namespaces`.
diff --git a/clang-tools-extra/test/clang-tidy/checkers/google/namespaces.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/google/namespaces.cpp
index 9bda3c0451b39..d830146fe1ff1 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/google/namespaces.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/google/namespaces.cpp
@@ -1,7 +1,3 @@
-// RUN: clang-tidy %s 
-checks='-*,google-build-namespaces,google-build-using-namespace' 
-header-filter='.*' -- | FileCheck %s -implicit-check-not="{{warning|error}}:"
-#include "Inputs/google-namespaces.h"
-// CHECK: warning: do not use unnamed namespaces in header files 
[google-build-namespaces]
-
 using namespace spaaaace;
 // CHECK: :[[@LINE-1]]:1: warning: do not use namespace using-directives; use 
using-declarations instead [google-build-using-namespace]
 
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/google/Inputs/google-namespaces.h 
b/clang-tools-extra/test/clang-tidy/checkers/misc/Inputs/anon-namespaces.h
similarity index 100%
rename from 
clang-tools-extra/test/clang-tidy/checkers/google/Inputs/google-namespaces.h
rename to 
clang-tools-extra/test/clang-tidy/checkers/misc/Inputs/anon-namespaces.h
diff --git a/clang-tools-extra/test/clang-tidy/checkers/misc/namespaces.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/misc/namespaces.cpp
new file mode 100644
index 0000000000000..d01547bfde8ce
--- /dev/null
+++ b/clang-tools-extra/test/clang-tidy/checkers/misc/namespaces.cpp
@@ -0,0 +1,3 @@
+// RUN: clang-tidy %s 
-checks='-*,misc-anonymous-namespace-in-header,google-build-using-namespace' 
-header-filter='.*' -- | FileCheck %s -implicit-check-not="{{warning|error}}:"
+#include "Inputs/anon-namespaces.h"
+// CHECK: warning: do not use unnamed namespaces in header files 
[misc-anonymous-namespace-in-header]

``````````

</details>


https://github.com/llvm/llvm-project/pull/170986
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