[llvm] [gardening][DebugInfo][NFC] Improve comment on HashingDISubprogram test (PR #91543)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-ir

Author: Augusto Noronha (augusto2112)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/91543.diff


1 Files Affected:

- (modified) llvm/unittests/IR/DebugInfoTest.cpp (+3-2) 


``````````diff
diff --git a/llvm/unittests/IR/DebugInfoTest.cpp b/llvm/unittests/IR/DebugInfoTest.cpp
index 8847a5759ad9f..cac8acbe15a79 100644
--- a/llvm/unittests/IR/DebugInfoTest.cpp
+++ b/llvm/unittests/IR/DebugInfoTest.cpp
@@ -1195,8 +1195,9 @@ TEST(MetadataTest, DbgVariableRecordConversionRoutines) {
   UseNewDbgInfoFormat = OldDbgValueMode;
 }
 
-// Test that the hashing function for DISubprograms produce the same result
-// after replacing the temporary scope.
+// Test that the hashing function for DISubprograms representing methods produce
+// the same result after replacing their scope (the type containing the
+// subprogram) from a temporary DIType with the permanent one.
 TEST(DIBuilder, HashingDISubprogram) {
   LLVMContext Ctx;
   std::unique_ptr<Module> M = std::make_unique<Module>("MyModule", Ctx);

``````````

</details>


https://github.com/llvm/llvm-project/pull/91543