[clang] [clang] Fix behavior of `__is_trivially_relocatable(volatile int)` (PR #77092)

[Amirreza Ashouri via cfe-commits]

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@@ -2669,6 +2669,8 @@ bool QualType::isTriviallyRelocatableType(const ASTContext &Context) const {
     return false;
   } else if (const auto *RD = BaseElementType->getAsRecordDecl()) {
     return RD->canPassInRegisters();
+  } else if (BaseElementType.isTriviallyCopyableType(Context)) {
+    return true;
   } else {
     switch (isNonTrivialToPrimitiveDestructiveMove()) {
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AMP999 wrote:

You mean why is `isNonTrivialToPrimitiveDestructiveMove` different from `isTriviallyRelocatable`? I don't know, but I think it has to do with Objective-C, so I left it alone.

https://github.com/llvm/llvm-project/pull/77092