Include filename, line and column in test IDs

[ahoppen]

The test IDs returned by #1151 don’t qualify the tests with the filename, line and column. Because of this, the test IDs may be ambiguous, eg. when multiple files define a private @Test function with the same name.

We should include the filename, line and column in the test ID as MyModule.S/f()/Tests.swift:2:3.

Note that when trying to test this, the --filter argument takes a regex, so the parentheses need to be escaped (and technically .)

[ahoppen]

Tracked in Apple’s issue tracker as rdar://125555338

[adam-fowler]

Out of interest how is swift-testing dealing with this? Would a filter MyModule.S/f\(\) run both tests?

[ahoppen]

My understanding is that the filter is a regex and MyModule.S/f\(\) would match both MyModule.S/f\(\)/FileA.swift:1:1 and MyModule.S/f\(\)/FileB.swift:1:1 and thus run both tests.