swift234

CMake: Set SWIFT_RUNTIME_OUTPUT_INTDIR/SWIFT_LIBRARY_OUTPUT_INTDIR properly for non-separated builds.

For non-separated CMake builds, i.e., CMake builds where Swift is
being built in the same build directory as LLVM and Clang, we were
incorrectly setting these variables such that the built libraries and
executables ended up under tools/swift rather than in their proper
places. Make sure that libraries and executables end up in the right
place in this configuration.

Swift SVN r11850