[clangd] Add missing clangBasic target_link_libraries
[clangd] Add missing clangBasic target_link_libraries

Without this, builds with `-DSHARED_LIB=ON` fail.


git-svn-id: a34e9779ed74578ad5922b3306b3d80a0c825546@342037 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra,llvm-mirror/clang-tools-extra