From: Pierre-Emmanuel Patry <[email protected]>

Add an extern prelude crate test and a minimal core library.

gcc/testsuite/ChangeLog:

        * rust/minicore/extern_prelude_path.rs: New test.
        * rust/minicore/extern_prelude_path_core/lib.rs: New test.

Signed-off-by: Pierre-Emmanuel Patry <[email protected]>

Tested on x86_64-pc-linux-gnu.

---
 gcc/testsuite/rust/minicore/extern_prelude_path.rs         | 7 +++++++
 .../rust/minicore/extern_prelude_path_core/lib.rs          | 4 ++++
 2 files changed, 11 insertions(+)
 create mode 100644 gcc/testsuite/rust/minicore/extern_prelude_path.rs
 create mode 100644 gcc/testsuite/rust/minicore/extern_prelude_path_core/lib.rs

diff --git a/gcc/testsuite/rust/minicore/extern_prelude_path.rs 
b/gcc/testsuite/rust/minicore/extern_prelude_path.rs
new file mode 100644
index 00000000000..994611e2ce9
--- /dev/null
+++ b/gcc/testsuite/rust/minicore/extern_prelude_path.rs
@@ -0,0 +1,7 @@
+#![feature(no_std)]
+#![no_std]
+
+pub fn main() {
+    let _: crate::core::Titi = ::core::Titi;
+    let _: ::core::Titi = crate::core::Titi;
+}
diff --git a/gcc/testsuite/rust/minicore/extern_prelude_path_core/lib.rs 
b/gcc/testsuite/rust/minicore/extern_prelude_path_core/lib.rs
new file mode 100644
index 00000000000..210881f5964
--- /dev/null
+++ b/gcc/testsuite/rust/minicore/extern_prelude_path_core/lib.rs
@@ -0,0 +1,4 @@
+#![feature(no_core)]
+#![no_core]
+
+pub struct Titi;
-- 
2.55.0

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