Get rid of most uses of 'Temporary macro' HEAP

src/ast.cc

Index: src/ast.cc
diff --git a/src/ast.cc b/src/ast.cc
index 6d1dc12054419dc27e14c3f5a13fa90952d5e364..823dedee098fc5942a63501057061c9ea8d67a3a 100644
--- a/src/ast.cc
+++ b/src/ast.cc
@@ -599,7 +599,7 @@ bool Call::ComputeGlobalTarget(Handle<GlobalObject> global,
     Handle<JSFunction> candidate(JSFunction::cast(cell_->value()));
     // If the function is in new space we assume it's more likely to
     // change and thus prefer the general IC code.
-    if (!HEAP->InNewSpace(*candidate)) {
+    if (!lookup->isolate()->heap()->InNewSpace(*candidate)) {
       target_ = candidate;
       return true;
     }