Added a version of the v8::HandleScope constructor with an Isolate and use that consistently.

test/cctest/test-dictionary.cc

Index: test/cctest/test-dictionary.cc
diff --git a/test/cctest/test-dictionary.cc b/test/cctest/test-dictionary.cc
index 2acd4e664ee05d8bb0a9123ad1010ba80bcfd70a..32fff606174423cc4e15c73d002331f6dafb7fe9 100644
--- a/test/cctest/test-dictionary.cc
+++ b/test/cctest/test-dictionary.cc
@@ -40,8 +40,8 @@ using namespace v8::internal;
 
 
 TEST(ObjectHashTable) {
-  v8::HandleScope scope;
   LocalContext context;
+  v8::HandleScope scope(context->GetIsolate());
   Handle<ObjectHashTable> table = FACTORY->NewObjectHashTable(23);
   Handle<JSObject> a = FACTORY->NewJSArray(7);
   Handle<JSObject> b = FACTORY->NewJSArray(11);
@@ -101,8 +101,8 @@ TEST(ObjectHashTable) {
 
 #ifdef DEBUG
 TEST(ObjectHashSetCausesGC) {
-  v8::HandleScope scope;
   LocalContext context;
+  v8::HandleScope scope(context->GetIsolate());
   Handle<ObjectHashSet> table = FACTORY->NewObjectHashSet(1);
   Handle<JSObject> key = FACTORY->NewJSArray(0);
   v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key);
@@ -131,8 +131,8 @@ TEST(ObjectHashSetCausesGC) {
 
 #ifdef DEBUG
 TEST(ObjectHashTableCausesGC) {
-  v8::HandleScope scope;
   LocalContext context;
+  v8::HandleScope scope(context->GetIsolate());
   Handle<ObjectHashTable> table = FACTORY->NewObjectHashTable(1);
   Handle<JSObject> key = FACTORY->NewJSArray(0);
   v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key);