Remove easy to remove calls to Isolate::Current() from api.cc

src/profiler/heap-snapshot-generator-inl.h

Index: src/profiler/heap-snapshot-generator-inl.h
diff --git a/src/profiler/heap-snapshot-generator-inl.h b/src/profiler/heap-snapshot-generator-inl.h
index fb1e891c94ef2aa10af9849b7965bafb13710f09..169ab569e82dc86ef8a4fe1009d9806e682ae370 100644
--- a/src/profiler/heap-snapshot-generator-inl.h
+++ b/src/profiler/heap-snapshot-generator-inl.h
@@ -16,6 +16,11 @@ HeapEntry* HeapGraphEdge::from() const {
 }
 
 
+Isolate* HeapGraphEdge::isolate() const {
+  return snapshot()->profiler()->isolate();
+}
+
+
 HeapSnapshot* HeapGraphEdge::snapshot() const {
   return to_entry_->snapshot();
 }
@@ -43,6 +48,8 @@ HeapGraphEdge** HeapEntry::children_arr() {
 }
 
 
+Isolate* HeapEntry::isolate() const { return snapshot_->profiler()->isolate(); }
+
 }  // namespace internal
 }  // namespace v8