[clang] [lldb] [BoundsSafety] Introduce LateParsedAttrType AST placeholder type (PR #204125)

[Aaron Ballman via cfe-commits]

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@@ -1358,6 +1358,37 @@ class CountAttributedTypeLoc final
   SourceRange getLocalSourceRange() const;
 };
 
+struct LateParsedAttrLocInfo {
+  SourceLocation AttrNameLoc;
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AaronBallman wrote:

Do we need to track the location for arguments to the attribute, in case we need to emit diagnostics about the argument itself?

https://github.com/llvm/llvm-project/pull/204125