Generate a char value

Property definitions

nitc $ JavaCompilerVisitor :: char_instance
	# Generate a char value
	fun char_instance(value: Char): RuntimeVariable do
		var t = compiler.mainmodule.char_type
		return new RuntimeVariable("'{value.to_s.escape_to_c}'", t, t)
	end
src/compiler/java_compiler.nit:910,2--914,4