diff --git a/modules/change_detection/src/record.js b/modules/change_detection/src/record.js
index 097849c564..3ec75c9d58 100644
--- a/modules/change_detection/src/record.js
+++ b/modules/change_detection/src/record.js
@@ -239,7 +239,6 @@ export class Record {
   }
 
   _updateDestination() {
-    // todo(vicb): compute this info only once in ctor ? (add a bit in mode not to grow the mem req)
     if (this.dest instanceof Record) {
       if (isPresent(this.protoRecord.dest.position)) {
         this.dest.updateArg(this.currentValue, this.protoRecord.dest.position);
diff --git a/modules/change_detection/test/change_detector_spec.js b/modules/change_detection/test/change_detector_spec.js
index c0a10efa70..623a76b571 100644
--- a/modules/change_detection/test/change_detector_spec.js
+++ b/modules/change_detection/test/change_detector_spec.js
@@ -417,7 +417,7 @@ export function main() {
           var prr = new ProtoRecordRange();
           prr.addRecordsFromAST(ast("a()"), "a", 1);
           prr.addRecordsFromAST(ast("b()"), "b", 2);
-          prr.addRecordsFromAST(ast("c()"), "b", 2);
+          prr.addRecordsFromAST(ast("c()"), "c", 2);
 
           var dispatcher = new TestDispatcher();
           var rr = prr.instantiate(dispatcher, null);
diff --git a/modules/core/src/compiler/view.js b/modules/core/src/compiler/view.js
index 29df335aff..3c6ab14f50 100644
--- a/modules/core/src/compiler/view.js
+++ b/modules/core/src/compiler/view.js
@@ -202,7 +202,7 @@ export class View {
     }
   }
 
-  _collectChanges(records:List) {
+  _collectChanges(records:List<Record>) {
     var changes = StringMapWrapper.create();
     for(var i = 0; i < records.length; ++i) {
       var record = records[i];