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

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

Index: test/cctest/heap/test-mark-compact.cc
diff --git a/test/cctest/test-mark-compact.cc b/test/cctest/heap/test-mark-compact.cc
similarity index 99%
rename from test/cctest/test-mark-compact.cc
rename to test/cctest/heap/test-mark-compact.cc
index af09ab01e5842df587158829f3cf543e121aa677..9cd37883c003cf12ff45bf7c1b5d5df7eb760ca6 100644
--- a/test/cctest/test-mark-compact.cc
+++ b/test/cctest/heap/test-mark-compact.cc
@@ -45,7 +45,9 @@
 #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;