remove HEAP from tests

test/cctest/test-heap-profiler.cc

Index: test/cctest/test-heap-profiler.cc
diff --git a/test/cctest/test-heap-profiler.cc b/test/cctest/test-heap-profiler.cc
index 61aa4bf1063584f2807c960ef5ec08b624834d17..59f7a258b1094fa5a0ddb2b2e42a2170f2560f55 100644
--- a/test/cctest/test-heap-profiler.cc
+++ b/test/cctest/test-heap-profiler.cc
@@ -505,7 +505,7 @@ TEST(HeapSnapshotAddressReuse) {
   CompileRun(
       "for (var i = 0; i < 10000; ++i)\n"
       "  a[i] = new A();\n");
-  HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
+  CcTest::heap()->CollectAllGarbage(i::Heap::kNoGCFlags);
 
   const v8::HeapSnapshot* snapshot2 =
       heap_profiler->TakeHeapSnapshot(v8_str("snapshot2"));
@@ -549,7 +549,7 @@ TEST(HeapEntryIdsAndArrayShift) {
       "for (var i = 0; i < 1; ++i)\n"
       "  a.shift();\n");
 
-  HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
+  CcTest::heap()->CollectAllGarbage(i::Heap::kNoGCFlags);
 
   const v8::HeapSnapshot* snapshot2 =
       heap_profiler->TakeHeapSnapshot(v8_str("s2"));
@@ -594,7 +594,7 @@ TEST(HeapEntryIdsAndGC) {
       heap_profiler->TakeHeapSnapshot(s1_str);
   CHECK(ValidateSnapshot(snapshot1));
 
-  HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
+  CcTest::heap()->CollectAllGarbage(i::Heap::kNoGCFlags);
 
   const v8::HeapSnapshot* snapshot2 =
       heap_profiler->TakeHeapSnapshot(s2_str);
@@ -901,7 +901,7 @@ TEST(HeapSnapshotObjectsStats) {
   // We have to call GC 6 times. In other case the garbage will be
   // the reason of flakiness.
   for (int i = 0; i < 6; ++i) {
-    HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
+    CcTest::heap()->CollectAllGarbage(i::Heap::kNoGCFlags);
   }
 
   v8::SnapshotObjectId initial_id;