parser: check (mut f Foo) syntax

vlib/builtin/js/array.v

@@ -47,17 +47,17 @@ pub fn (a array) repeat(nr_repeats int) array {
 	return a
 }
 
-pub fn (a mut array) sort_with_compare(compare voidptr) {
+pub fn (mut a array) sort_with_compare(compare voidptr) {
 }
 
-pub fn (a mut array) insert(i int, val voidptr) {
+pub fn (mut a array) insert(i int, val voidptr) {
 }
 
-pub fn (a mut array) prepend(val voidptr) {
+pub fn (mut a array) prepend(val voidptr) {
 	a.insert(0, val)
 }
 
-pub fn (a mut array) delete_elm(idx int) {
+pub fn (mut a array) delete_elm(idx int) {
 }
 
 /*
@@ -132,7 +132,7 @@ pub fn (b []byte) hex() string {
 	return 'sdf'
 }
 
-pub fn (arr mut array) push_many(val voidptr, size int) {
+pub fn (mut arr array) push_many(val voidptr, size int) {
 }
 
 pub fn free(voidptr) {

vlib/builtin/js/map.v

@@ -10,7 +10,7 @@ pub struct map {
 	obj voidptr
 }
 
-//fn (m mut map) insert(n mut mapnode, key string, val voidptr) {
+//fn (mut m map) insert(n mut mapnode, key string, val voidptr) {
 //}
 
 //////fn (n & mapnode) find(key string, out voidptr, element_size int) bool{
@@ -26,7 +26,7 @@ pub struct map {
 	//return 0
 //}
 
-pub fn (m mut map) keys() []string {
+pub fn (mut m map) keys() []string {
 	return ['']
 }
 
@@ -34,7 +34,7 @@ fn (m map) get(key string, out voidptr) bool {
 	return false
 }
 
-pub fn (m mut map) delete(key string) {
+pub fn (mut m map) delete(key string) {
 }
 
 fn (m map) exists(key string) bool {

vlib/builtin/js/string.v

@@ -23,8 +23,8 @@ pub fn tos(s byteptr) string {
 	return string{
 		str: s
 		len: len
-	}	
-}	
+	}
+}
 
 // string.clone_static returns an independent copy of a given array
 // It should be used only in -autofree generated code.
@@ -209,14 +209,14 @@ pub fn (s string) trim_right(cutset string) string {
 // fn print_cur_thread() {
 // //C.printf("tid = %08x \n", pthread_self());
 // }
-pub fn (s mut []string) sort() {
-	
+pub fn (mut s []string) sort() {
+
 }
 
-pub fn (s mut []string) sort_ignore_case() {
+pub fn (mut s []string) sort_ignore_case() {
 }
 
-pub fn (s mut []string) sort_by_len() {
+pub fn (mut s []string) sort_by_len() {
 }
 
 fn (s string) at(idx int) byte {