[clang] [clang] On Windows, silence warning in `CFGBackEdgesTest` with MSVC (PR #187939)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Alexandre Ganea (aganea)

<details>
<summary>Changes</summary>

This fixes:
```
[5804/7029] Building CXX object 
tools\clang\unittests\CMakeFiles\AllClangUnitTests.dir\Analysis\CFGBackEdgesTest.cpp.obj
C:\Program Files\Microsoft Visual 
Studio\2022\Community\VC\Tools\MSVC\14.44.35207\include\xutility(721): warning 
C4018: '&gt;': signed/unsigned mismatch
...
C:\git\llvm-project\clang\unittests\Analysis\CFGBackEdgesTest.cpp(170): note: 
see the first reference to 
'testing::internal::PredicateFormatterFromMatcher&lt;testing::internal::SizeIsMatcher&lt;testing::internal::GtMatcher&lt;int&gt;&gt;&gt;::operator
 ()' in 
'clang::analysis::`anonymous-namespace'::CFGBackEdgesTest_WhileWithContinueLoop_Test::TestBody'
```

---
Full diff: https://github.com/llvm/llvm-project/pull/187939.diff


1 Files Affected:

- (modified) clang/unittests/Analysis/CFGBackEdgesTest.cpp (+1-1) 


``````````diff
diff --git a/clang/unittests/Analysis/CFGBackEdgesTest.cpp 
b/clang/unittests/Analysis/CFGBackEdgesTest.cpp
index 1bf699c65ec81..a82dbc9a559d8 100644
--- a/clang/unittests/Analysis/CFGBackEdgesTest.cpp
+++ b/clang/unittests/Analysis/CFGBackEdgesTest.cpp
@@ -167,7 +167,7 @@ TEST(CFGBackEdgesTest, WhileWithContinueLoop) {
   ASSERT_THAT(Cfg, NotNull());
 
   auto BackEdges = findCFGBackEdges(*Cfg);
-  EXPECT_THAT(BackEdges, SizeIs(testing::Gt(0)));
+  EXPECT_THAT(BackEdges, SizeIs(testing::Gt(0u)));
   for (const auto &[From, To] : BackEdges)
     EXPECT_THAT(From->getLoopTarget(), NotNull());
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/187939
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