Get rid of most uses of 'Temporary macro' HEAP

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 78e3e561fc301a67d4eb3ce819013bf1e4b52310..69abc5454f0eea0a4287ed0ca1bca3844e7049da 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -285,16 +285,17 @@ void MacroAssembler::InNewSpace(Register object,
     cmpq(scratch, kScratchRegister);
     j(cc, branch, distance);
   } else {
-    ASSERT(is_int32(static_cast<int64_t>(HEAP->NewSpaceMask())));
+    ASSERT(is_int32(static_cast<int64_t>(isolate()->heap()->NewSpaceMask())));
     intptr_t new_space_start =
-        reinterpret_cast<intptr_t>(HEAP->NewSpaceStart());
+        reinterpret_cast<intptr_t>(isolate()->heap()->NewSpaceStart());
     movq(kScratchRegister, -new_space_start, RelocInfo::NONE64);
     if (scratch.is(object)) {
       addq(scratch, kScratchRegister);
     } else {
       lea(scratch, Operand(object, kScratchRegister, times_1, 0));
     }
-    and_(scratch, Immediate(static_cast<int32_t>(HEAP->NewSpaceMask())));
+    and_(scratch,
+         Immediate(static_cast<int32_t>(isolate()->heap()->NewSpaceMask())));
     j(cc, branch, distance);
   }
 }