Arrange for this to give an error message:

    i3 : first List := x->x

    o3 = {*Function[stdio:3:15-3:17]*}

    o3 : FunctionClosure

It's not a method function!

    i4 : first

    o4 = first

    o4 : FunctionClosure

    i5 : code first

    o5 = ../../../d/startup.m2.in:122:16-122:21: --source code:
	      first = x -> x#0;

Actually, this will interfere with all the code in typicalvalues.m2!
