refactor(benchmark): simplify writing benchmarks

Adds `benchmarks/benchpress` module and adjusts the compiler
benchmarks to use it. Also adds the Angular 1.3 benchmark
to the compiler benchmarks.

Closes #202

modules/change_detection/src/parser/closure_map.dart

@@ -1,3 +1,5 @@
+library change_detection.parser.closure_map;
+
 import 'dart:mirrors';
 
 typedef SetterFn(Object obj, value);