fix(patch): fix #744, add namespace to load patch name

[JiaLiPassion]

1. patch node's timer setTimeout with node_timer name
2. patch fs and events of nodejs with Zone.__load_patch function
3. make some modification for file structure, zone-node will also have a rollup-main, so we have a clear structure.

• common (toString, error, promise)
• browser
• node
• mix(electron)

[thymikee]

@JiaLiPassion can you explain how global.setTimeout is patched already? I'm using Zone in mixed environment (Jest with jsdom), and I apparently need global.setTimeout to be patched, so fakeAsync from Angular test utils can work properly. But because it exits early, this line is not reached.

This very line essentially breaks Angular testing with fakeAsync in Jest. We're tracking this under thymikee/jest-preset-angular#65.

Any help appreciated.

[JiaLiPassion]

@thymikee , I will check your repo, in mix environment, the timer will be patched through browser, https://github.com/angular/zone.js/blob/master/lib/browser/browser.ts#L30.

[thymikee]

@JiaLiPassion thank you for the answer! I was using dist/zone-node.js because jsdom (simulating browser env) had a bug which had me to fallback from dist/zone.js. Seems like the issue is now fixed and works with current version.