fix: field pointers in fieldIndexByName (#452)

Allow pointers to structs in fieldIndexByName.

Also:
* Use reflect.Type.Elem() vs reflect.ValueOf(t).Elem().Type().
* Format bug_test.go to fix lint failure.

bug_test.go

@@ -774,7 +774,7 @@ func Test_issue266(t *testing.T) {
 	})
 }
 
-func Test_issue369 (t *testing.T) {
+func Test_issue369(t *testing.T) {
 	tt(t, func() {
 		test, tester := test()
 

runtime.go

@@ -292,18 +292,25 @@ func (self *_runtime) convertNumeric(v Value, t reflect.Type) reflect.Value {
 
 func fieldIndexByName(t reflect.Type, name string) []int {
 	for t.Kind() == reflect.Ptr {
-		t = reflect.ValueOf(t).Elem().Type()
+		t = t.Elem()
 	}
+
 	for i := 0; i < t.NumField(); i++ {
 		f := t.Field(i)
 
 		if !validGoStructName(f.Name) {
 			continue
 		}
 
-		if f.Anonymous && f.Type.Kind() == reflect.Struct {
-			if a := fieldIndexByName(f.Type, name); a != nil {
-				return append([]int{i}, a...)
+		if f.Anonymous {
+			for t.Kind() == reflect.Ptr {
+				t = t.Elem()
+			}
+
+			if f.Type.Kind() == reflect.Struct {
+				if a := fieldIndexByName(f.Type, name); a != nil {
+					return append([]int{i}, a...)
+				}
 			}
 		}