[clang] [clang] fix parsing of late parsed attributes with delayed template parsing (PR #163483)

[Erich Keane via cfe-commits]

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@@ -1272,7 +1272,7 @@ Decl *Parser::ParseFunctionDefinition(ParsingDeclarator &D,
   // tokens and store them for late parsing at the end of the translation unit.
   if (getLangOpts().DelayedTemplateParsing && Tok.isNot(tok::equal) &&
       TemplateInfo.Kind == ParsedTemplateKind::Template &&
-      Actions.canDelayFunctionBody(D)) {
+      LateParsedAttrs->empty() && Actions.canDelayFunctionBody(D)) {
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erichkeane wrote:

I'm not as up on late parsed attributes as I wish I was, I would like @AaronBallman to make sure we're not doing anything silly here.  

https://github.com/llvm/llvm-project/pull/163483