Add (failing) test that halide reports user error when called with OpenGL in bad state
Add (failing) test that halide reports user error when called with OpenGL in bad state


Former-commit-id: 13abd3bb083e4133aecc5d6ad0fbadab8abfe085
darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide