This reverts commit beb8ecd8cc. Add a
workaround for the dependency issue.
It is unclear why `sourcekitd` is getting added improperly as a
dependency on `lib/sourcekitd.framework/sourcekitd`. This workaround
adjusts the dependency such that we end up with a dependency on
`lib/sourcekitd.framework/Versions/A/sourcekitd` as an order-only
dependency. This should fix the compile issue. I am unable to
reproduce this issue with the `add_library` usage for adding a Swift
library. This allows us to cleave the host and target libraries, and so
the workaround is sufficient to make progress and the problem will be
resolved with the migration towards CMake for handling the dependencies.
This moves the swift-lang library out of the tools/SourceKit directory
and into the stdlib directory. As it stands, the library required that
the standard library and the SDK overlay was being built. This is
implicitly done when building the stdlib subdirectory. Furthermore, it
had an odd tie between the flags for Swift and SourceKit which now have
the logic separated. This clearly delineates the host and target
components in the repository.
If one thinks about it, swift's build has two sections: a runtime or target
section (i.e. ./stdlib) and a host section (everything
else). swift-reflection-test is an abberation from that pattern since it is
built for target platforms but is in the section of host tools.
In this commit, I move it into ./stdlib. Beyond being a bitter location
conceptually this will additionally allow me to avoid a dependency cycle in
between the compiler and the stdlib build.
After this, there is only one more target in the compiler code: swift-lang. From
talking with Xi Ge, we can move that into its own separate project as a
package. Once that is done, I will not have any more cycles.
