refactor(dart/transform): Minor renames

Rename `setupReflection` => `initReflector`
Rename `TemplateComplier` => `TemplateCompiler`

Closes #1180

modules/angular2/test/transform/integration/two_annotations_files/expected/bar.ng_deps.dart

@@ -7,7 +7,7 @@ import 'package:angular2/src/core/annotations/template.ng_deps.dart' as i0;
 import 'package:angular2/src/core/annotations/annotations.ng_deps.dart' as i1;
 
 bool _visited = false;
-void setupReflection(reflector) {
+void initReflector(reflector) {
   if (_visited) return;
   _visited = true;
   reflector
@@ -19,6 +19,6 @@ void setupReflection(reflector) {
         const Template(inline: 'Salad')
       ]
     });
-  i0.setupReflection(reflector);
-  i1.setupReflection(reflector);
+  i0.initReflector(reflector);
+  i1.initReflector(reflector);
 }