Is this Objective-C code?

Property definitions

nitc :: objc $ AExternCodeBlock :: is_objc
	# Is this Objective-C code?
	fun is_objc : Bool do return language_name != null and
		(language_name_lowered == "objc" or language_name_lowered.has_prefix("objc "))
src/ffi/objc.nit:127,2--129,80