Eli Barzilay 3151e2a365 Make hasCorrectArity handle tuples properly
This completes the work that started in PR #33069, and fixes #32835.

There are probably two additional related changes that are needed to
make this more complete:

* Fix the code that composes the error message (see the first two
  `FIXME`s in `callWithSpread3.ts`).

* Fix the code that checks the argument types (second two `FIXME`s).

* There is also an error in `genericRestParameters1.ts` which changed
  but should not be an error in the first place.  Added a `FIXME` there
  too.  (Probably will work if the previous iterm is done.)

In addition, `getEffectiveCallArguments` munges the arguments in case of
a spread in the last argument which might be better to avoid.  (I think
that there are cases where it wouldn't work anyway, such as a spread of
an array followed by a spread of an empty array.)
2020-06-04 23:46:56 -04:00
..