[counters] Implement off-isolate RuntimeCallStats for the Preparser

src/counters-inl.h

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COUNTERS_INL_H_
 #define V8_COUNTERS_INL_H_
 
 #include "src/counters.h"
 
 namespace v8 {
 namespace internal {
 
 RuntimeCallTimerScope::RuntimeCallTimerScope(
     Isolate* isolate, RuntimeCallStats::CounterId counter_id) {
   if (V8_UNLIKELY(FLAG_runtime_stats)) {
-    Initialize(isolate, counter_id);
+    Initialize(isolate->counters()->runtime_call_stats(), counter_id);
   }
 }
 
 RuntimeCallTimerScope::RuntimeCallTimerScope(
     HeapObject* heap_object, RuntimeCallStats::CounterId counter_id) {
+  RuntimeCallTimerScope(heap_object->GetIsolate(), counter_id);
+}
+
+RuntimeCallTimerScope::RuntimeCallTimerScope(
+    RuntimeCallStats* stats, RuntimeCallStats::CounterId counter_id) {
   if (V8_UNLIKELY(FLAG_runtime_stats)) {
-    Initialize(heap_object->GetIsolate(), counter_id);
+    Initialize(stats, counter_id);
   }
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COUNTERS_INL_H_