If zonejs is sent undefined callbacks it proceeds to attempt to call them, then fails, catches it own fail, rewrites the stack to hide the mistake, and reports a TypeError with a callstack unrelated to inputs.
Throw early if the callback is undefined (as can happen if JS or any-ified TS calls zone invokeTask).
Check for undefined onCommplete callback to zonejs jasmine wrapper.
PR Close#31497
This partially reverts some changes from 71b9371180 (diff-dd469785fca8680a5b33b1e81c5cfd91R1420)
These broke the g3sync of zone.js because we use the output of the TypeScript compiler directly, rather than rely on the rollup commonjs plugin to define the global symbol
PR Close#31453
