cleanup cctest generally and remove ctest::context

test/cctest/test-assembler-x64.cc

Index: test/cctest/test-assembler-x64.cc
diff --git a/test/cctest/test-assembler-x64.cc b/test/cctest/test-assembler-x64.cc
index 84fd1502a911911e51845233dddca66eb8765d65..30577751ed4aad226a05f6b8d3f378f6bd186ed5 100644
--- a/test/cctest/test-assembler-x64.cc
+++ b/test/cctest/test-assembler-x64.cc
@@ -433,7 +433,6 @@ TEST(AssemblerMultiByteNop) {
 #define ELEMENT_COUNT 4
 
 void DoSSE2(const v8::FunctionCallbackInfo<v8::Value>& args) {
-  CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());
   v8::internal::byte buffer[1024];
 
@@ -483,6 +482,7 @@ void DoSSE2(const v8::FunctionCallbackInfo<v8::Value>& args) {
 
 
 TEST(StackAlignmentForSSE2) {
+  CcTest::InitializeVM();
   CHECK_EQ(0, OS::ActivationFrameAlignment() % 16);
 
   v8::Isolate* isolate = CcTest::isolate();