Fixed: "Follow symbol" on constructor or destructor always jumps to class definition

Task-number: QTCREATORBUG-1776

src/libs/cplusplus/CppDocument.cpp

@@ -703,25 +703,17 @@ public:
 };
 } // end of anonymous namespace
 
-Symbol *Snapshot::findMatchingDefinition(Symbol *symbol) const
+Symbol *Snapshot::findMatchingDefinition(Symbol *declaration) const
 {
-    if (! symbol->identifier())
+    if (! (declaration && declaration->identifier()))
         return 0;
 
-    Document::Ptr thisDocument = document(QString::fromUtf8(symbol->fileName(), symbol->fileNameLength()));
+    Document::Ptr thisDocument = document(QString::fromUtf8(declaration->fileName(), declaration->fileNameLength()));
     if (! thisDocument) {
-        qWarning() << "undefined document:" << symbol->fileName();
+        qWarning() << "undefined document:" << declaration->fileName();
         return 0;
     }
 
-    LookupContext thisContext(thisDocument, *this);
-    const QList<Symbol *> declarationCandidates = thisContext.lookup(symbol->name(), symbol->scope());
-    if (declarationCandidates.isEmpty()) {
-        qWarning() << "unresolved declaration:" << symbol->fileName() << symbol->line() << symbol->column();
-        return 0;
-    }
-
-    Symbol *declaration = declarationCandidates.first();
     Function *declarationTy = declaration->type()->asFunctionType();
     if (! declarationTy) {
         qWarning() << "not a function:" << declaration->fileName() << declaration->line() << declaration->column();

src/plugins/cppeditor/cppeditor.cpp

@@ -1238,7 +1238,20 @@ CPPEditor::Link CPPEditor::findLinkAt(const QTextCursor &cursor,
     const QList<LookupItem> resolvedSymbols = typeOfExpression(expression, scope, TypeOfExpression::Preprocess);
 
     if (!resolvedSymbols.isEmpty()) {
-        const LookupItem result = skipForwardDeclarations(resolvedSymbols);
+        LookupItem result = skipForwardDeclarations(resolvedSymbols);
+
+        foreach (const LookupItem &r, resolvedSymbols) {
+            if (Symbol *d = r.declaration()) {
+                if (d->isDeclaration() || d->isFunction()) {
+                    if (file()->fileName() == QString::fromUtf8(d->fileName(), d->fileNameLength())) {
+                        if (unsigned(line) == d->line() && unsigned(column) >= d->column()) { // ### TODO: check the end
+                            result = r; // take the symbol under cursor.
+                            break;
+                        }
+                    }
+                }
+            }
+        }
 
         if (Symbol *symbol = result.declaration()) {
             Symbol *def = 0;