parser: check (mut f Foo) syntax

vlib/picohttpparser/request.v

@@ -9,7 +9,7 @@ mut:
 }
 
 [inline]
-pub fn (r mut Request) parse_request(s string, headers *C.phr_header_t, max_headers int) int {
+pub fn (mut r Request) parse_request(s string, headers *C.phr_header_t, max_headers int) int {
 	method_len := u64(0)
 	path_len := u64(0)
 	minor_version := 0
@@ -33,7 +33,7 @@ pub fn (r mut Request) parse_request(s string, headers *C.phr_header_t, max_head
 }
 
 [inline]
-pub fn (r mut Request) parse_request_path(s string) int {
+pub fn (mut r Request) parse_request_path(s string) int {
 	method_len := u64(0)
 	path_len := u64(0)
 
@@ -50,7 +50,7 @@ pub fn (r mut Request) parse_request_path(s string) int {
 }
 
 [inline]
-pub fn (r mut Request) parse_request_path_pipeline(s string) int {
+pub fn (mut r Request) parse_request_path_pipeline(s string) int {
 	method_len := u64(0)
 	path_len := u64(0)
 

vlib/picohttpparser/response.v

@@ -10,13 +10,13 @@ mut:
 }
 
 [inline]
-pub fn (r mut Response) http_ok() &Response {
+pub fn (mut r Response) http_ok() &Response {
 	r.buf += cpy_str(r.buf, "HTTP/1.1 200 OK\r\n")
 	return r
 }
 
 [inline]
-pub fn (r mut Response) header(k, v string) &Response {
+pub fn (mut r Response) header(k, v string) &Response {
 	r.buf += cpy_str(r.buf, k)
 	r.buf += cpy_str(r.buf, ": ")
 	r.buf += cpy_str(r.buf, v)
@@ -25,7 +25,7 @@ pub fn (r mut Response) header(k, v string) &Response {
 }
 
 [inline]
-pub fn (r mut Response) header_date() &Response {
+pub fn (mut r Response) header_date() &Response {
 	r.buf += cpy_str(r.buf, "Date: ")
 	r.buf += cpy(r.buf, r.date, 29)
 	r.buf += cpy_str(r.buf, "\r\n")
@@ -33,13 +33,13 @@ pub fn (r mut Response) header_date() &Response {
 }
 
 [inline]
-pub fn (r mut Response) header_server() &Response {
+pub fn (mut r Response) header_server() &Response {
 	r.buf += cpy_str(r.buf, "Server: V\r\n")
 	return r
 }
 
 [inline]
-pub fn (r mut Response) content_type(s string) &Response {
+pub fn (mut r Response) content_type(s string) &Response {
 	r.buf += cpy_str(r.buf, "Content-Type: ")
 	r.buf += cpy_str(r.buf, s)
 	r.buf += cpy_str(r.buf, "\r\n")
@@ -47,19 +47,19 @@ pub fn (r mut Response) content_type(s string) &Response {
 }
 
 [inline]
-pub fn (r mut Response) plain() &Response {
+pub fn (mut r Response) plain() &Response {
 	r.buf += cpy_str(r.buf, "Content-Type: text/plain\r\n")
 	return r
 }
 
 [inline]
-pub fn (r mut Response) json() &Response {
+pub fn (mut r Response) json() &Response {
 	r.buf += cpy_str(r.buf, "Content-Type: application/json\r\n")
 	return r
 }
 
 [inline]
-pub fn (r mut Response) body(body string) {
+pub fn (mut r Response) body(body string) {
 	r.buf += cpy_str(r.buf, "Content-Length: ")
 	r.buf += C.u64toa(r.buf, body.len)
 	r.buf += cpy_str(r.buf, "\r\n\r\n")
@@ -67,27 +67,27 @@ pub fn (r mut Response) body(body string) {
 }
 
 [inline]
-pub fn (r mut Response) http_404() {
+pub fn (mut r Response) http_404() {
 	r.buf += cpy_str(r.buf, 'HTTP/1.1 404 Not Found\r\nContent-Length: 0\r\n\r\n')
 }
 
 [inline]
-pub fn (r mut Response) http_405() {
+pub fn (mut r Response) http_405() {
 	r.buf += cpy_str(r.buf, 'HTTP/1.1 405 Method Not Allowed\r\nContent-Length: 0\r\n\r\n')
 }
 
 [inline]
-pub fn (r mut Response) http_500() {
+pub fn (mut r Response) http_500() {
 	r.buf += cpy_str(r.buf, 'HTTP/1.1 500 Internal Server Error\r\nContent-Length: 0\r\n\r\n')
 }
 
 [inline]
-pub fn (r mut Response) raw(response string) {
+pub fn (mut r Response) raw(response string) {
 	r.buf += cpy_str(r.buf, response)
 }
 
 [inline]
-pub fn (r mut Response) end() int {
+pub fn (mut r Response) end() int {
 	n := int(r.buf - r.buf_start)
 	if C.write(r.fd, r.buf_start, n) != n {
 		return -1