Generate an int16 value

Property definitions

nitc $ AbstractCompilerVisitor :: int16_instance
	# Generate an int16 value
	fun int16_instance(value: Int16): RuntimeVariable
	do
		var t = mmodule.int16_type
		var res = new RuntimeVariable("INT16_C({value.to_s})", t, t)
		return res
	end
src/compiler/abstract_compiler.nit:1730,2--1736,4