SourceKit: re-package libdispatch, BlocksRuntime

The SourceKit component requires libdispatch and BlocksRuntime to run.
We build the libraries as part of the build and use it via imported
targets.  Ensure that the dependencies get installed for use at runtime.

Author: compnerd

tools/SourceKit/CMakeLists.txt

@@ -158,6 +158,13 @@ if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
                             INTERFACE_INCLUDE_DIRECTORIES
                               ${SWIFT_PATH_TO_LIBDISPATCH_SOURCE}/src/BlocksRuntime)
 
+    swift_install_in_component(sourcekit-inproc
+                               FILES
+                                 $<TARGET_FILE:dispatch>
+                                 $<TARGET_FILE:BlocksRuntime>
+                               DESTINATION
+                                 lib${LLVM_LIBDIR_SUFFIX})
+
     # FIXME(compnerd) this should be taken care of by the
     # INTERFACE_INCLUDE_DIRECTORIES above
     include_directories(AFTER