Some bad interactions with StdlibUnittest and XCTest lead to sporadic test timeouts for this test. Given that the codebase is obsolete, the best option seems to be to stop running this test altogether. All we really care is that the resulting dylib still contains the right symbols, and building (but not running) this test seems to be a reasonable way of doing that.
Most of this is just "remember to specify the inputs and outputs on
the command line, so remote-run can see them". A bit is "prefix
environment variables with '%env-'". And the last few are "yeah,
this was never going to work in a remote environment".
In the few cases where I couldn't think of anything reasonable, I just
marked the test as "UNSUPPORTED: remote_run", a new "feature".
SE-0072 took implicit bridging conversions away, which regressed the ability to express NSDictionaries as dictionary literals and index them using literal keys. Address this by changing the signature of init(dictionaryLiteral:) to use Hashable and Any, and by replacing the subscript from Objective-C with one using _Hashable that does the bridging on the user's behalf. This largely restores the QoI of working with NS collections.
One last bit of SE-0072. We shouldn't fall back to bridged classes in the absence of type context for literals anymore. By itself, this kind of hoses the use of literals with NS types, but I think we can get most of the QoI back with overlay changes I plan to propose following this.
Previously, the only version of the functions that accepted values was the one that implicitly wraps them into Optionals. This generated a confusing error message when the assert failed. Having a separate overload that accepts non-optional types ensures that the correct description is printed when the assert fails.
This is needed if we compile StdlibUnittest with -sil-serialize-all
So far I added the imports only in files which needed them. But this may change, depending on the optimizer (inlining).
Adding them in all files doesn't harm and avoids confusion if someone makes an unrelated change which would result in such a linker error.
The current validation tests for the stdlib XCTest only check that it
compiles, not that it works at runtime. Begin adding tests that verify
its behavior at runtime, beginning with:
- A test that Objective-C exceptions are captured and reported.
- Tests for some function overloads of `XCTAssertEqual()`.
