checker: apply fix for ui suggested by spaceface

vlib/v/checker/checker.v

@@ -1876,6 +1876,7 @@ pub fn (mut c Checker) selector_expr(mut node ast.SelectorExpr) ast.Type {
 		}
 		method.params = method.params[1..]
 		node.has_hidden_receiver = true
+		method.name = ''
 		fn_type := ast.new_type(c.table.find_or_register_fn_type(c.mod, method, false,
 			true))
 		return fn_type