Add frameworks needed for Metal to linker flags for tests.
Add frameworks needed for Metal to linker flags for tests.


Former-commit-id: 8cb393dce4f486a87947b4a4fb779c86c3987f53
Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide