checker: fix passing enum to a method expecting string

vlib/v/builder/builder.v

@@ -333,7 +333,7 @@ fn verror(s string) {
 	util.verror('builder error', s)
 }
 
-pub fn (mut b Builder) timing_message(msg string, ms int) {
+pub fn (mut b Builder) timing_message(msg string, ms i64) {
 	formatted_message := '$msg: ${util.bold(ms.str())} ms'
 	if b.pref.show_timings {
 		println(formatted_message)

vlib/v/checker/checker.v

@@ -963,7 +963,9 @@ pub fn (mut c Checker) call_method(mut call_expr ast.CallExpr) table.Type {
 				// }
 				// same ancestor? let it be
 				if exp_arg_sym.parent_idx == got_arg_sym.parent_idx {
-					continue
+					if got_arg_sym.parent_idx != 0 {
+						continue
+					}
 				}
 				if got_arg_typ != table.void_type {
 					c.error('cannot use type `$got_arg_sym.str()` as type `$exp_arg_sym.str()` in argument ${i+1} to `${left_type_sym.name}.$method_name`',

vlib/v/checker/tests/method_wrong_arg_type.out

@@ -0,0 +1,6 @@
+vlib/v/checker/tests/method_wrong_arg_type.v:8:4: error: cannot use type `MyEnum` as type `string` in argument 1 to `Sss.info` 
+    6 |     e := MyEnum.x
+    7 |     s := Sss{}
+    8 |     s.info(e)
+      |       ~~~~~~~
+    9 | }

vlib/v/checker/tests/method_wrong_arg_type.vv

@@ -0,0 +1,9 @@
+enum MyEnum { x y z }
+pub fn (e MyEnum) str() string { return int(e).str() }
+struct Sss { }
+fn (s Sss) info(msg string) { println(msg) }
+fn main() {
+	e := MyEnum.x
+	s := Sss{}
+	s.info(e)
+}