[clang] [Attributes] Support Attributes being declared as only supporting late parsing when passing an experimental feature flag (PR #88596)

[Erich Keane via cfe-commits]

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@@ -91,11 +91,24 @@ static StringRef normalizeAttrName(StringRef Name) {
 
 /// isAttributeLateParsed - Return true if the attribute has arguments that
 /// require late parsing.
-static bool isAttributeLateParsed(const IdentifierInfo &II) {
+bool Parser::isAttributeLateParsed(const IdentifierInfo &II) {
+  // Some attributes might only be late parsed when in the experimental
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erichkeane wrote:

AH! Urgh, i see now.  Github's layout confused me.  Disregard!

https://github.com/llvm/llvm-project/pull/88596