[cctest] Move most heap related tests to test/cctest/heap and clean wrt IWYU

test/cctest/heap/test-mark-compact.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 27 matching lines @@
 #include <unistd.h>
 #endif
 
 #include <utility>
 
 #include "src/v8.h"
 
 #include "src/full-codegen/full-codegen.h"
 #include "src/global-handles.h"
 #include "test/cctest/cctest.h"
-#include "test/cctest/heap-tester.h"
+#include "test/cctest/heap/heap-tester.h"
+#include "test/cctest/heap/utils-inl.h"
+
 
 using namespace v8::internal;
 using v8::Just;
 
 
 TEST(MarkingDeque) {
   CcTest::InitializeVM();
   int mem_size = 20 * kPointerSize;
   byte* mem = NewArray<byte>(20*kPointerSize);
   Address low = reinterpret_cast<Address>(mem);
@@ skipping 430 matching lines @@
 
 
 TEST(RegressJoinThreadsOnIsolateDeinit) {
   intptr_t size_limit = ShortLivingIsolate() * 2;
   for (int i = 0; i < 10; i++) {
     CHECK_GT(size_limit, ShortLivingIsolate());
   }
 }
 
 #endif  // __linux__ and !USE_SIMULATOR