Most tests were using %swift or similar substitutions, which did not
include the target triple and SDK. The driver was defaulting to the
host OS. Thus, we could not run the tests when the standard library was
not built for OS X.
Swift SVN r24504
This flag is now obsoleted by the interactive driver and simply
complicates understanding the command-line parsing. Making it an error
to force users to move also allows us to reuse the flag in the future if
we like.
Swift SVN r20641
Most of the tests just got moved to swiftc, but some of them were
duplicated to apply to both swiftc and swift. A handful still use the
existing 'swift' because they are for the existing '-i' syntax.
Note: this means config.swift_driver now uses the staging symlink
'swifti'. The only thing preventing us from dropping the 'i' and getting
rid of the old interface is that Xcode hasn't moved to swiftc yet
<rdar://problem/17769327>.
Swift SVN r20467
Previously we were only getting system search paths (via dlopen), so you
couldn't ever load system frameworks.
This is the compiler side of <rdar://problem/17629517>, which is
unfortunately not the useful part.
Swift SVN r19831
