feat(change_detector): add a way to inspect records and record ranges

modules/change_detection/src/parser/ast.js

@@ -345,10 +345,12 @@ export class MethodCall extends AST {
   receiver:AST;
   fn:Function;
   args:List;
-  constructor(receiver:AST, fn:Function, args:List) {
+  name:string;
+  constructor(receiver:AST, name:string, fn:Function, args:List) {
     this.receiver = receiver;
     this.fn = fn;
     this.args = args;
+    this.name = name;
   }
 
   eval(context) {

modules/change_detection/src/parser/parser.js

@@ -404,7 +404,7 @@ class _ParseAST {
       var args = this.parseCallArguments();
       this.expectCharacter($RPAREN);
       var fn = this.reflector.method(id);
-      return new MethodCall(receiver, fn, args);
+      return new MethodCall(receiver, id, fn, args);
 
     } else {
       var getter = this.reflector.getter(id);