finalize not firing in super gross mode

[benlesh]

When using useDeprecatedSynchronousErrorHandling, finalize handlers are not called after a synchronous error is thrown

This is nefarious, because it means that maybe we're not calling any teardowns at all.

import { throwError, config } from "rxjs";
import { finalize } from "rxjs/operators";
console.clear();

config.useDeprecatedSynchronousErrorHandling = true;

try {
  throwError(new Error("test"))
    .pipe(
      finalize(() => {
       // This is never called.
        console.log("finalized");
      })
    )
    .subscribe(() => {
      console.log("nexted");
    });
} catch (err) {
  console.log("here");
}