perf: use === instead of == for faster checks.

Author: mhevery

modules/change_detection/src/change_detector.js

@@ -56,8 +56,8 @@ export class ChangeDetector {
  if (isPresent(updatedRecords)) {
  var nextEnabled = record.nextEnabled;
  if (isBlank(nextEnabled) || // we have reached the last enabled record
- currentRange != nextEnabled.recordRange || // the next record is in a different range
- currentGroup != nextEnabled.groupMemento()) { // the next record is in a different group
+ currentRange !== nextEnabled.recordRange || // the next record is in a different range
+ currentGroup !== nextEnabled.groupMemento()) { // the next record is in a different group
  currentRange.dispatcher.onRecordChange(currentGroup, updatedRecords);
  updatedRecords = null;
  }