remove Isolate::Current from most files starting with 's' through 'v'

test/cctest/test-accessors.cc

Index: test/cctest/test-accessors.cc
diff --git a/test/cctest/test-accessors.cc b/test/cctest/test-accessors.cc
index 105ecf1811a9b04fc383126b3d175e8eca2093af..2f7e7f4e7d563b443a2cbb96de6cf500df85f79f 100644
--- a/test/cctest/test-accessors.cc
+++ b/test/cctest/test-accessors.cc
@@ -464,7 +464,8 @@ THREADED_TEST(StackIteration) {
   LocalContext env;
   v8::HandleScope scope(env->GetIsolate());
   v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
-  i::StringStream::ClearMentionedObjectCache();
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(env->GetIsolate());
+  i::StringStream::ClearMentionedObjectCache(isolate);
   obj->SetAccessor(v8_str("xxx"), StackCheck);
   env->Global()->Set(v8_str("obj"), obj->NewInstance());
   Script::Compile(String::New(