Debugger[CDB]: Fix handling of shadowed variables.

Fix name formatting and algorithm to find uninitialized
variables to use reverse order in case locals of the same
name occur in a scope.

Reviewed-by: hjk
Task-number: QTCREATORBUG-4475

src/plugins/debugger/cdb/cdbengine.cpp

@@ -1432,19 +1432,21 @@ void CdbEngine::updateLocals(bool forNewStackFrame)
         }
     }
     addLocalsOptions(str);
-    // Uninitialized variables if desired
+    // Uninitialized variables if desired. Quote as safeguard against shadowed
+    // variables in case of errors in uninitializedVariables().
     if (debuggerCore()->boolSetting(UseCodeModel)) {
         QStringList uninitializedVariables;
         getUninitializedVariables(debuggerCore()->cppCodeModelSnapshot(),
                                   frame.function, frame.file, frame.line, &uninitializedVariables);
         if (!uninitializedVariables.isEmpty()) {
-            str << blankSeparator << "-u ";
+            str << blankSeparator << "-u \"";
             int i = 0;
             foreach(const QString &u, uninitializedVariables) {
                 if (i++)
                     str << ',';
                 str << localsPrefixC << u;
             }
+            str << '"';
         }
     }
     // Perform watches synchronization

src/plugins/debugger/watchdata.cpp

@@ -397,7 +397,7 @@ QString WatchData::shadowedName(const QString &name, int seen)
 {
     if (seen <= 0)
         return name;
-    return shadowedNameFormat().arg(name, seen);
+    return shadowedNameFormat().arg(name).arg(seen);
 }
 
 quint64 WatchData::coreAddress() const

src/plugins/debugger/watchutils.cpp

@@ -338,8 +338,9 @@ static void blockRecursion(const CPlusPlus::Overview &overview,
                            SeenHash *seenHash,
                            int level = 0)
 {
-    const int size = scope->memberCount();
-    for (int s = 0; s < size; s++){
+    // Go backwards in case someone has identical variables in the same scope.
+    // Fixme: loop variables or similar are currently seen in the outer scope
+    for (int s = scope->memberCount() - 1; s >= 0; --s){
         const CPlusPlus::Symbol *symbol = scope->memberAt(s);
         if (symbol->isDeclaration()) {
             // Find out about shadowed symbols by bookkeeping