[clang] [clang][Sema] Add diagnostic note for reference of function-like macros requiring without parentheses (PR #123495)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,c -- clang/lib/Sema/SemaExpr.cpp clang/test/Preprocessor/macro_with_initializer_list.cpp clang/test/Sema/c23-varargs.c clang/test/Sema/typo-correction.c --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index e3511823f..101b4d6d4 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -2559,7 +2559,7 @@ static bool diagnoseFunctionLikeMacro(Sema &SemaRef, DeclarationName Name,
       if (MI && MI->isFunctionLike()) {
         SemaRef.Diag(TypoLoc,
                      diag::err_undeclared_var_use_suggest_func_like_macro)
-            << II ->getName();
+            << II->getName();
         SemaRef.Diag(MI->getDefinitionLoc(),
                      diag::note_function_like_macro_requires_parens)
             << II->getName();
@@ -2603,8 +2603,8 @@ static void emitEmptyLookupTypoDiagnostic(
     // Emit a special diagnostic for failed member lookups.
     // FIXME: computing the declaration context might fail here (?)
     if (Ctx)
-      SemaRef.Diag(TypoLoc, diag::err_no_member) << Typo << Ctx
-                                                 << SS.getRange();
+      SemaRef.Diag(TypoLoc, diag::err_no_member)
+          << Typo << Ctx << SS.getRange();
     else if (diagnoseFunctionLikeMacro(SemaRef, Typo, TypoLoc))
       return;
     else
@@ -2622,9 +2622,10 @@ static void emitEmptyLookupTypoDiagnostic(
     SemaRef.diagnoseTypo(TC, SemaRef.PDiag(DiagnosticSuggestID) << Typo,
                          SemaRef.PDiag(NoteID));
   else
-    SemaRef.diagnoseTypo(TC, SemaRef.PDiag(diag::err_no_member_suggest)
-                                 << Typo << Ctx << DroppedSpecifier
-                                 << SS.getRange(),
+    SemaRef.diagnoseTypo(TC,
+                         SemaRef.PDiag(diag::err_no_member_suggest)
+                             << Typo << Ctx << DroppedSpecifier
+                             << SS.getRange(),
                          SemaRef.PDiag(NoteID));
 }
 

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https://github.com/llvm/llvm-project/pull/123495