fix(error): fix #674, handle error.stack readonly case

[JiaLiPassion]

in phantomJS, the error.stack is readonly, so we need to catch such case and set the stack property directly to ZoneAwareError.

before 0.8.1, the case is OK because code here, https://github.com/angular/zone.js/blob/master/lib/zone.ts#L1955

and

https://github.com/angular/zone.js/blob/master/lib/zone.ts#L1992

before 0.8.1 , the stackTraceLimit is 15, so in PhantomJS, ZoneAwareError can't finish finding all run/runGuarded/runTask, so stackRewrite is false, and ZoneAwareError will not try to override NativeError.stack.

and in 0.8.1, the stackTraceLimit increased to 100 in detect phase, so ZoneAwareError can find all run/runGuarded/runTask, so stackRewrite is true.

In this PR, we just try/catch and write the zoneAware stack frames to ZoneAwareError directly