language/least_upper_bound/least_upper_bound_function_test.dart would
succeed if in `f4` the type of `z` were any top type. The type actually
expected is `Object?`. This CL adds some extra steps to `f4` to ensure
that it rejects other top types.
Change-Id: Ie2d042d54e83bf3e9c9db0c432ca32e90c5bbc6b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166850
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Commit-Queue: Erik Ernst <eernst@google.com>
The tests least_upper_bound_{futureor,function}_test.dart are corrected:
The expected least upper bound was changed in one case in each test,
because the case matches a rule earlier in the ruleset, so the new rules
are not used in these cases.
Change-Id: I1f5f303ccde10af6084771a90d92d81d636909d6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166635
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Commit-Queue: Erik Ernst <eernst@google.com>
https://github.com/dart-lang/language/pull/1195 changes the UP function
such that it uses the greatest closure with bounded and promoted type
variables, and adjusts the catch-all rules about function types (used
with `Function(int)` and `String` and other "otherwise" cases).
This PR adds tests for the updated rules.
Change-Id: I793b85ceec76105d013c03e8d9bccdd187bb476f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166101
Commit-Queue: Erik Ernst <eernst@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
Erik Ernst