fix(test): command compiler attr merge test in IE

Author: marclaval

modules/angular2/test/core/compiler/command_compiler_spec.ts

@@ -222,7 +222,7 @@ export function main() {
  inject([AsyncTestCompleter], (async) => {
  var rootComp = createComp({
  type: RootCompTypeMeta,
- template: '<div class="origclass" style="origstyle" role="origrole" attr1>'
+ template: '<div class="origclass" style="color: red;" role="origrole" attr1>'
  });
  var dir = CompileDirectiveMetadata.create({
  selector: 'div',
@@ -246,7 +246,7 @@ export function main() {
  'role',
  'newrole',
  'style',
- 'origstyle newstyle'
+ 'color: red; newstyle'
  ],
  [],
  [],