[clang] [clang-cl] Fix value of __FUNCTION__ in MSVC mode. (PR #67592)

[Aaron Ballman via cfe-commits]

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@@ -1635,6 +1635,15 @@ void TypePrinter::printElaboratedBefore(const ElaboratedType *T,
     if (T->getKeyword() != ElaboratedTypeKeyword::None)
       OS << " ";
     NestedNameSpecifier *Qualifier = T->getQualifier();
+    if (Policy.SuppressTagKeyword && Policy.SuppressScope) {
+      std::string prefix = T->isClassType()       ? "class "
+                           : T->isStructureType() ? "struct "
+                           : T->isUnionType()     ? "union "
+                                                  : "";
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AaronBallman wrote:

Hmmm this still seems wrong to me. When `SuppressTagKeyword` is true, tags (`struct`, `union`, etc) should not be printed.

https://github.com/llvm/llvm-project/pull/67592