These results are cached, so we can't use the type-relation. Instead we
use a small hack of checking the textual return type for "Void". This
is obviously not ideal, but it lets us detect the most important cases.
rdar://problem/22810741
On a per-request basis. Allows hiding/showing at multiple granularities
* everything
* module
* API by name
* keywords (by uid or all of them)
* literals (by uid or all of them)
With more specific rules overriding less specific ones (so you can hide
everything and then selectively show certain API for example).
rdar://24170060
The code goes into its own sub-tree under 'tools' but tests go under 'test',
so that running 'check-swift' will also run all the SourceKit tests.
SourceKit is disabled on non-darwin platforms.
