Is this code block in Java, and for a module block to generate in the class?

Property definitions

nitc :: java $ AExternCodeBlock :: is_inner_java
	# Is this code block in Java, and for a module block to generate in the class?
	private fun is_inner_java: Bool do return language_name != null and
		language_name_lowered == "java inner"
src/ffi/java.nit:390,2--392,39