[clang] [SystemZ][z/OS] Add visibility features for z/OS (eg. _Export, pragma export) (PR #111035)

[Erich Keane via cfe-commits]

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@@ -1400,6 +1416,171 @@ bool Parser::HandlePragmaMSAllocText(StringRef PragmaName,
   return true;
 }
 
+NestedNameSpecifier *
+Parser::zOSParseIdentifier(StringRef PragmaName,
+                           const IdentifierInfo *IdentName) {
+  NestedNameSpecifier *NestedId = nullptr;
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erichkeane wrote:

What is this for the grammar of?  Are you just trying to get the name of a thing?  I did something similar, see : `ParseOpenACCIDExpression`.  For C++ you can use `ParseCXXIdExpression`, and I emulated it for C.

https://github.com/llvm/llvm-project/pull/111035