Predefined type int_least16_t missing on x86_64-linux and (unchecked) possibly other platforms

[ParadoxV5]

To reproduce:

FFI::find_type :int_least16_t # TypeError

Note there is no int_least16_t in this file, yet I’m able to compile a C program with int_least16_t using gcc on x86_64-linux.

ffi/lib/ffi/platform/x86_64-linux/types.conf

Lines 76 to 82 in 73c36d7

	rbx.platform.typedef.int_fast16_t = long
	rbx.platform.typedef.int_fast32_t = long
	rbx.platform.typedef.int_fast64_t = long
	rbx.platform.typedef.int_fast8_t = char
	rbx.platform.typedef.int_least32_t = int
	rbx.platform.typedef.int_least64_t = long
	rbx.platform.typedef.int_least8_t = char