CppEditor: Consider symbol occurrences in comments

... when renaming.
For local renaming, we consider only function parameters.

Task-number: QTCREATORBUG-12051
Change-Id: I7948d69f11b97663c9bd747ae6241a82dd9bdd82
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/cppeditor/cppfindreferences.cpp

@@ -600,6 +600,10 @@ static void displayResults(SearchResult *search,
 
 static void searchFinished(SearchResult *search, QFutureWatcher<CPlusPlus::Usage> *watcher)
 {
+    if (!watcher->isCanceled() && search->supportsReplace()) {
+        search->addResults(symbolOccurrencesInDeclarationComments(search->allItems()),
+                           SearchResult::AddSortedByPosition);
+    }
     search->finishSearch(watcher->isCanceled());
 
     CppFindReferencesParameters parameters = search->userData().value<CppFindReferencesParameters>();