* win32-low.c: Adapt to support also 64-bit architecture.

	* win32-low.c: Adapt to support also 64-bit architecture.
	(child_xfer_memory): Use uintptr_t type for local variable `addr'.
	(get_image_name): Use SIZE_T type for local variable `done'.
	(psapi_get_dll_name): Use LPVOID type for parameter `BaseAddress'.
	(toolhelp_get_dll_name): Idem.
	(handle_load_dll): Use CORE_ADDR type for local variable `load_addr'.
	Use uintptr_t typecast to avoid warning.
	(handle_unload_dll): Use uintptr_t typecast to avoid warning.
	(handle_exception): Use phex_nz to avoid warning.
	(win32_wait): Remove unused local variable `process'.