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

[Aaron Ballman via cfe-commits]

================
@@ -1401,6 +1417,164 @@ bool Parser::HandlePragmaMSAllocText(StringRef PragmaName,
   return true;
 }
 
+NestedNameSpecifier *Parser::zOSParseIdentifier(StringRef PragmaName,
+                                                IdentifierInfo *IdentName) {
----------------
AaronBallman wrote:

```suggestion
                                                const IdentifierInfo *IdentName) {
```

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