chore: adjust formatting to new clang-format.

- fixes wrapping for object literal keys called `template`.
- spacing in destructuring expressions.
- changes to keep trailing return types of functions closer to their
  function declaration.
- better formatting of string literals.

Closes #4828

modules/angular2/src/testing/testing.ts

@@ -144,22 +144,22 @@ export function beforeEach(fn: FunctionWithParamTokens | AnyTestFn): void {
   }
 }
 
-export function it(name: string, fn: FunctionWithParamTokens | AnyTestFn, timeOut: number = null):
-    void {
+export function it(name: string, fn: FunctionWithParamTokens | AnyTestFn,
+                   timeOut: number = null): void {
   return _it(jsmIt, name, fn, timeOut);
 }
 
-export function xit(name: string, fn: FunctionWithParamTokens | AnyTestFn, timeOut: number = null):
-    void {
+export function xit(name: string, fn: FunctionWithParamTokens | AnyTestFn,
+                    timeOut: number = null): void {
   return _it(jsmXIt, name, fn, timeOut);
 }
 
-export function iit(name: string, fn: FunctionWithParamTokens | AnyTestFn, timeOut: number = null):
-    void {
+export function iit(name: string, fn: FunctionWithParamTokens | AnyTestFn,
+                    timeOut: number = null): void {
   return _it(jsmIIt, name, fn, timeOut);
 }
 
-export function fit(name: string, fn: FunctionWithParamTokens | AnyTestFn, timeOut: number = null):
-    void {
+export function fit(name: string, fn: FunctionWithParamTokens | AnyTestFn,
+                    timeOut: number = null): void {
   return _it(jsmIIt, name, fn, timeOut);
 }