[Isolates] Merge crankshaft (r5922 from bleeding_edge).

test/cctest/cctest.cc

Index: test/cctest/cctest.cc
diff --git a/test/cctest/cctest.cc b/test/cctest/cctest.cc
index 60f847e0bc29f192d7d3f0e0a633337e892a8f3b..f638ed480fb0b4a7e14306e229ed71df7d9e779c 100644
--- a/test/cctest/cctest.cc
+++ b/test/cctest/cctest.cc
@@ -36,11 +36,6 @@ CcTest* CcTest::last_ = NULL;
 CcTest::CcTest(TestFunction* callback, const char* file, const char* name,
                const char* dependency, bool enabled)
     : callback_(callback), name_(name), dependency_(dependency), prev_(last_) {
-  // Make sure that the global isolate has had a chance to complete its
-  // static initialization. (We need this so that things like StrDup work.)
-  v8::internal::Isolate::EnsureDefaultIsolate();
-  CHECK(v8::internal::Isolate::Current() != NULL);
-
   // Find the base name of this test (const_cast required on Windows).
   char *basename = strrchr(const_cast<char *>(file), '/');
   if (!basename) {