Initialize a visitor specific for a compiler engine

Property definitions

	# Initialize a visitor specific for a compiler engine
	fun new_visitor: VISITOR is abstract

src/compiler/abstract_compiler.nit:673,2--674,37

	redef fun new_visitor do return new SeparateCompilerVisitor(self)

src/compiler/separate_compiler.nit:1152,2--66

	redef fun new_visitor do return new GlobalCompilerVisitor(self)

src/compiler/global_compiler.nit:314,2--64

	redef fun new_visitor do return new SeparateErasureCompilerVisitor(self)

src/compiler/separate_erasure_compiler.nit:484,2--73