Update tools/clang/lib/Sema/SemaHLSL.cpp

Co-authored-by: Greg Roth <[email protected]>

Author: simoll

tools/clang/lib/Sema/SemaHLSL.cpp

@@ -12224,7 +12224,7 @@ DiagnoseElementTypes(Sema &S, SourceLocation Loc, QualType Ty, bool &Empty,
   case AR_TOBJ_COMPOUND: {
     bool ErrorFound = false;
     const RecordDecl *RD = Ty->getAs<RecordType>()->getDecl();
-    // Never recurse infinitely into related subtypes
+    // Never recurse redundantly into related subtypes that have already been checked.
     if (!CheckedDecls.insert(RD).second)
       return false;