libgomp: Provide prototypes for functions implemented by libgomp plugins

libgomp: Provide prototypes for functions implemented by libgomp plugins

	libgomp/
	* libgomp-plugin.h: #include <stdbool.h>.
	(GOMP_OFFLOAD_get_name, GOMP_OFFLOAD_get_caps)
	(GOMP_OFFLOAD_get_type, GOMP_OFFLOAD_get_num_devices)
	(GOMP_OFFLOAD_init_device, GOMP_OFFLOAD_fini_device)
	(GOMP_OFFLOAD_version, GOMP_OFFLOAD_load_image)
	(GOMP_OFFLOAD_unload_image, GOMP_OFFLOAD_alloc, GOMP_OFFLOAD_free)
	(GOMP_OFFLOAD_dev2host, GOMP_OFFLOAD_host2dev)
	(GOMP_OFFLOAD_dev2dev, GOMP_OFFLOAD_can_run, GOMP_OFFLOAD_run)
	(GOMP_OFFLOAD_async_run, GOMP_OFFLOAD_openacc_parallel)
	(GOMP_OFFLOAD_openacc_register_async_cleanup)
	(GOMP_OFFLOAD_openacc_async_test)
	(GOMP_OFFLOAD_openacc_async_test_all)
	(GOMP_OFFLOAD_openacc_async_wait)
	(GOMP_OFFLOAD_openacc_async_wait_async)
	(GOMP_OFFLOAD_openacc_async_wait_all)
	(GOMP_OFFLOAD_openacc_async_wait_all_async)
	(GOMP_OFFLOAD_openacc_async_set_async)
	(GOMP_OFFLOAD_openacc_create_thread_data)
	(GOMP_OFFLOAD_openacc_destroy_thread_data)
	(GOMP_OFFLOAD_openacc_get_current_cuda_device)
	(GOMP_OFFLOAD_openacc_get_current_cuda_context)
	(GOMP_OFFLOAD_openacc_get_cuda_stream)
	(GOMP_OFFLOAD_openacc_set_cuda_stream): New prototypes.
	* libgomp.h (struct acc_dispatch_t, struct gomp_device_descr): Use
	these.
	* plugin/plugin-hsa.c (GOMP_OFFLOAD_load_image)
	(GOMP_OFFLOAD_unload_image): Fix argument types.
	liboffloadmic/
	* plugin/libgomp-plugin-intelmic.cpp (GOMP_OFFLOAD_get_type): Fix
	return type.
	(GOMP_OFFLOAD_load_image): Fix argument types.

From-SVN: r245062