simpler case.
	modified:   broom/ea.go
Resolve(symbol Symbol) instead of Resolve (name string) etc.
	modified:   broom/builtin.go
	modified:   broom/ea.go
	modified:   broom/ea_test.go
	modified:   broom/object.go
	modified:   broom/repl.go
	modified:   broom/sf.go
	modified:   broom/sf_test.go