test/debug-info: filename extension matters on windows

[klutzy]

make check-<stage>-debuginfo compiles some-test.rs into some-test.<stage>-<target>, which is actually some-test.<stage>-<target>.exe on windows.

This causes test failures on windows:

$ gdb ./basic-types-globals-metadata.stage2-i686-w64-mingw32.exe
...

(gdb) whatis 'basic-types-globals-metadata::B'  <- expected to work in test
No symbol "basic-types-globals-metadata::B" in current context.

(gdb) whatis 'basic-types-globals-metadata.stage2-i686-w64-mingw32::B'
type = bool

Relevant tests:

    [debug-info] debug-info/basic-types-globals-metadata.rs
    [debug-info] debug-info/basic-types-globals.rs
    [debug-info] debug-info/basic-types-mut-globals.rs
    [debug-info] debug-info/c-style-enum.rs
    [debug-info] debug-info/lexical-scopes-in-block-expression.rs
    [debug-info] debug-info/simple-struct.rs
    [debug-info] debug-info/simple-tuple.rs
    [debug-info] debug-info/vec-slices.rs
    [debug-info] debug-info/vec.rs

[michaelwoerister]

Thanks for the report, I'll look into it.

[michaelwoerister]

I can't reproduce this (anymore?). This seems to have been fixed in the meanwhile. Debuginfo generation picks up the correct crate name also on Windows.

[alexcrichton]

Closing for now, but of course feel free to reopen if it reproduces still!

[michaelwoerister]

@alexcrichton Well, I wanted to re-enable the tests in question before closing the issue, which in turn I wanted to do after the current Windows-related PR had landed. Would you mind if I just update the open PR to enable the tests? The queue is quite long at the moment.

[alexcrichton]

Aha, of course!

[michaelwoerister]

Done. Re-approve please: #18422

[klutzy]

#18422 passed on buildbot, and check-stage2-debuginfo-gdb passed on my machine (win64 + msys2 + gdb 7.8). Woohoo!