Release note, clang-format.

Author: Doug Wyatt

clang/docs/ReleaseNotes.rst

@@ -707,6 +707,12 @@ Improvements to Clang's diagnostics
 - Improve the diagnostics for placement new expression when const-qualified
   object was passed as the storage argument. (#GH143708)
 
+- Added a separate diagnostic group `-Wfunction-effect-redeclarations``, for the more pedantic
+  diagnostics for function effects (``[[clang::nonblocking]]`` and ``[[clang::nonallocating]]``).
+  Moved the warning for a missing (though implied) attribute on a redeclaration into this group.
+  Added a new warning in this group for the case where the attribute is missing/implicit on
+  an override of a virtual method.
+
 Improvements to Clang's time-trace
 ----------------------------------
 

clang/lib/Sema/SemaDeclCXX.cpp

@@ -18700,8 +18700,8 @@ bool Sema::CheckOverridingFunctionAttributes(CXXMethodDecl *New,
                                                    NewFT->getParamTypes(), EPI);
           New->setType(ModQT);
           if (Errs.empty()) {
-            // A warning here is somewhat pedantic. Skip this if there was already 
-            // a merge conflict, which is more serious.
+            // A warning here is somewhat pedantic. Skip this if there was
+            // already a merge conflict, which is more serious.
             Diag(New->getLocation(), diag::warn_mismatched_func_effect_override)
                 << Diff.effectName();
             Diag(Old->getLocation(), diag::note_overridden_virtual_function)