Fix Relay OSS breakage caused by use of setImmediate module
Fix Relay OSS breakage caused by use of setImmediate module

Summary: [[https://github.com/facebook/relay/commit/cc7c0e5b16999e045937a5f75a4ef0fe05b4695e | cc7c0e5b]] broke tests on the master branch in OSS because it added a dependency on our internal `setImmediate` module, which has some FB-specific behavior. This diff unbreaks OSS by using the `resolveImmediate` module instead, which is available in OSS Relay via fbjs.

This is an alternative fix for https://github.com/facebook/relay/pull/509

Reviewed By: josephsavona

Differential Revision: D2579879

fb-gh-sync-id: ebf7e44a2a55c155019849e2aa11e6dba42d58db

NevilleS/relay,heracek/relay,facebook/relay,xuorig/relay,wincent/relay,kassens/relay,atxwebs/relay,cpojer/relay,cesarandreu/relay,NevilleS/relay,wincent/relay,josephsavona/relay,chentsulin/relay,cesarandreu/relay,xuorig/relay,xuorig/relay,voideanvalue/relay,chentsulin/relay,freiksenet/relay,Aweary/relay,iamchenxin/relay,gabelevi/relay,cesarandreu/relay,rosskevin/relay,kassens/relay,apalm/relay,Aweary/relay,freiksenet/relay,chirag04/relay,cpojer/relay,voideanvalue/relay,michaelchum/relay,facebook/relay,andimarek/generic-relay,zpao/relay,kassens/relay,voideanvalue/relay,yungsters/relay,voideanvalue/relay,benjaminogles/relay,gabelevi/relay,wincent/relay,mroch/relay,andimarek/generic-relay,facebook/relay,Aweary/relay,kassens/relay,atxwebs/relay,michaelchum/relay,josephsavona/relay,yungsters/relay,apalm/relay,kassens/relay,xuorig/relay,heracek/relay,wincent/relay,venepe/relay,xuorig/relay,yungsters/relay,venepe/relay,atxwebs/relay,voideanvalue/relay,freiksenet/relay,wincent/relay,rosskevin/relay,facebook/relay,chirag04/relay,xuorig/relay,dbslone/relay,facebook/relay,iamchenxin/relay,benjaminogles/relay,dbslone/relay,apalm/relay,venepe/relay,gabelevi/relay,mroch/relay,zpao/relay,facebook/relay,josephsavona/relay,michaelchum/relay,chirag04/relay,mroch/relay,cpojer/relay,zpao/relay,NevilleS/relay,cpojer/relay,heracek/relay,wincent/relay,kassens/relay,iamchenxin/relay,forter/generic-relay,andimarek/generic-relay,atxwebs/relay,voideanvalue/relay,benjaminogles/relay,iamchenxin/relay,chentsulin/relay