parser: check (mut f Foo) syntax

vlib/crypto/aes/aes_cbc.v

@@ -79,7 +79,7 @@ pub fn (x &AesCbc) encrypt_blocks(dst mut []byte, src_ []byte) {
 	copy(x.iv, iv)
 }
 
-pub fn (x mut AesCbc) decrypt_blocks(dst mut []byte, src []byte) {
+pub fn (mut x AesCbc) decrypt_blocks(dst mut []byte, src []byte) {
 	if src.len%x.block_size != 0 {
 		panic('crypto.cipher: input not full blocks')
 	}

vlib/crypto/md5/md5.v

@@ -37,7 +37,7 @@ mut:
 	len u64
 }
 
-fn (d mut Digest) reset() {
+fn (mut d Digest) reset() {
 	d.s = [u32(0)].repeat(4)
 	d.x = [byte(0)].repeat(block_size)
     d.s[0] = u32(init0)
@@ -55,7 +55,7 @@ pub fn new() &Digest {
 	return d
 }
 
-pub fn (d mut Digest) write(p_ []byte) int {
+pub fn (mut d Digest) write(p_ []byte) int {
 	mut p := p_
 	nn := p.len
 	d.len += u64(nn)
@@ -98,7 +98,7 @@ pub fn (d &Digest) sum(b_in []byte) []byte {
 	return b_out
 }
 
-pub fn (d mut Digest) checksum() []byte {
+pub fn (mut d Digest) checksum() []byte {
 	// Append 0x80 to the end of the message and then append zeros
 	// until the length is a multiple of 56 bytes. Finally append
 	// 8 bytes representing the message length in bits.

vlib/crypto/rc4/rc4.v

@@ -49,7 +49,7 @@ pub fn new_cipher(key []byte) ?Cipher {
 //
 // Deprecated: Reset can't guarantee that the key will be entirely removed from
 // the process's memory.
-pub fn (c mut Cipher) reset() {
+pub fn (mut c Cipher) reset() {
 	for i in c.s {
 		c.s[i] = 0
 	}
@@ -59,7 +59,7 @@ pub fn (c mut Cipher) reset() {
 
 // xor_key_stream sets dst to the result of XORing src with the key stream.
 // Dst and src must overlap entirely or not at all.
-pub fn (c mut Cipher) xor_key_stream(dst mut []byte, src []byte) {
+pub fn (mut c Cipher) xor_key_stream(dst mut []byte, src []byte) {
 	if src.len == 0 {
 		return
 	}

vlib/crypto/sha1/sha1.v

@@ -39,7 +39,7 @@ mut:
 	len u64
 }
 
-fn (d mut Digest) reset() {
+fn (mut d Digest) reset() {
 	d.x = [byte(0)].repeat(chunk)
 	d.h = [u32(0)].repeat(5)
 	d.h[0] = u32(init0)
@@ -58,7 +58,7 @@ pub fn new() &Digest {
 	return d
 }
 
-pub fn (d mut Digest) write(p_ []byte) int {
+pub fn (mut d Digest) write(p_ []byte) int {
 	mut p := p_
 	nn := p.len
 	d.len += u64(nn)
@@ -102,7 +102,7 @@ pub fn (d &Digest) sum(b_in []byte) []byte {
 	return b_out
 }
 
-fn (d mut Digest) checksum() []byte {
+fn (mut d Digest) checksum() []byte {
 	mut len := d.len
 	// Padding.  Add a 1 bit and 0 bits until 56 bytes mod 64.
 	mut tmp := [byte(0)].repeat(64)

vlib/crypto/sha256/sha256.v

@@ -51,7 +51,7 @@ mut:
 	is224 bool // mark if this digest is SHA-224
 }
 
-fn (d mut Digest) reset() {
+fn (mut d Digest) reset() {
 	d.h = [u32(0)].repeat(8)
 	d.x = [byte(0)].repeat(chunk)
 	if !d.is224 {
@@ -92,7 +92,7 @@ pub fn new224() &Digest {
 	return d
 }
 
-fn (d mut Digest) write(p_ []byte) int {
+fn (mut d Digest) write(p_ []byte) int {
 	mut p := p_
 	nn := p.len
 	d.len += u64(nn)
@@ -141,7 +141,7 @@ fn (d &Digest) sum(b_in []byte) []byte {
 	return b_out
 }
 
-fn (d mut Digest) checksum() []byte {
+fn (mut d Digest) checksum() []byte {
 	mut len := d.len
 	// Padding. Add a 1 bit and 0 bits until 56 bytes mod 64.
 	mut tmp := [byte(0)].repeat(64)

vlib/crypto/sha512/sha512.v

@@ -69,7 +69,7 @@ mut:
 	function crypto.Hash
 }
 
-fn (d mut Digest) reset() {
+fn (mut d Digest) reset() {
 	d.h = [u64(0)].repeat(8)
 	d.x = [byte(0)].repeat(chunk)
 	match d.function {
@@ -146,7 +146,7 @@ fn new384() &Digest {
 	return new_digest(.sha384)
 }
 
-fn (d mut Digest) write(p_ []byte) int {
+fn (mut d Digest) write(p_ []byte) int {
 	mut p := p_
 	nn := p.len
 	d.len += u64(nn)
@@ -209,7 +209,7 @@ fn (d &Digest) sum(b_in []byte) []byte {
 	return b_out
 }
 
-fn (d mut Digest) checksum() []byte {
+fn (mut d Digest) checksum() []byte {
 	// Padding. Add a 1 bit and 0 bits until 112 bytes mod 128.
 	mut len := d.len
 	mut tmp := [byte(0)].repeat(128)