Enhance Object.assign static method signature

[falsandtru]

TypeScript Version: master

Code

#12110

+    assign<T>(target: T, source: T, ...sources: T[]): T;

-    assign<T, U>(target: T, source: U): T & U;
+    assign<T, U>(target: T, source: U, ...sources: U[]): T & U;

[mhegazy]

We have a few signatures for 2,3 , and 4 arguments. i am not convinced this adds much. #11100 tracks correctly typing this function. so i would say we should wait for #11100.

[falsandtru]

I see, I introduce this in #11100.

[falsandtru]

@mhegazy This patch don't conflict with #12114, is just an enhancement. So you can merge this patch.

[mhegazy]

@sandersn is working on a fix for this. i would rather we waited for that change.