Make a new attribute read

Property definitions

nitc $ ASTBuilder :: make_attr_read
	# Make a new attribute read
	fun make_attr_read(recv: AExpr, attribute: MAttribute): AAttrExpr
	do
		var mtype = attribute.intro.static_mtype.resolve_for(recv.mtype.as(not null), anchor, mmodule, true)
		return new AAttrExpr.make(recv, attribute, mtype)
	end
src/astbuilder.nit:82,2--87,4