Fix target property to make BUILD_SHARED_LIBS work

Public and Private link libraries get merged in the LINK_LIBRARIES property instead of being kept separate.

With any luck this will get `BUILD_SHARED_LIBS` working again on Linux.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@361334 91177308-0d34-0410-b5e6-96231b3b80d8

tools/clang-shlib/CMakeLists.txt

@@ -8,7 +8,7 @@ get_property(clang_libs GLOBAL PROPERTY CLANG_STATIC_LIBS)
 foreach (lib ${clang_libs})
   list(APPEND _OBJECTS $<TARGET_OBJECTS:obj.${lib}>)
   list(APPEND _DEPS $<TARGET_PROPERTY:${lib},INTERFACE_LINK_LIBRARIES>)
-  list(APPEND _DEPS $<TARGET_PROPERTY:${lib},PRIVATE_LINK_LIBRARIES>)
+  list(APPEND _DEPS $<TARGET_PROPERTY:${lib},LINK_LIBRARIES>)
 endforeach ()
 
 add_clang_library(clang_shared