fmt: stop mangling reference names

vlib/v/fmt/fmt.v

@@ -453,7 +453,13 @@ fn (f mut Fmt) struct_decl(node ast.StructDecl) {
 }
 
 fn (f &Fmt) type_to_str(t table.Type) string {
-	res := f.table.type_to_str(t)
+	mut res := f.table.type_to_str(t)
+	// type_ptr => &type
+	if res.ends_with('_ptr') {
+		res = res[0 .. res.len-4]
+		start_pos := 2 * res.count('[]')
+		res = res[0 .. start_pos] + '&' + res[start_pos .. res.len]
+	}
 	return res.replace(f.cur_mod + '.', '')
 }
 

vlib/v/fmt/tests/type_ptr_keep.vv

@@ -0,0 +1,14 @@
+const (
+	x = &Test{}
+	y = []&Test
+	z = &[]&Test
+)
+
+fn test_type_ptr() {
+	a := &Test{}
+	b := []&Test
+	c := &[]&Test
+}
+
+struct Test {
+}