Rename mlhs rule to mlhs_items for clarity in parse.y

Since `mlhs` is already defined as a nonterminal as follows, using the same name as a parameterizing rule is a bit confusing, so rename the parameterizing rule.

https://github.com/ruby/ruby/blob/8d1c45978329bced97c003d9612b55f578c40a65/parse.y#L3648-L3654

Author: ydah

parse.y

@@ -3026,13 +3026,13 @@ rb_parser_ary_free(rb_parser_t *p, rb_parser_ary_t *ary)
                     }
                 ;
 
-%rule mlhs(item) <node>
+%rule mlhs_items(item) <node>
                 : item
                     {
                         $$ = NEW_LIST($1, &@$);
                     /*% ripper: mlhs_add!(mlhs_new!, $:1) %*/
                     }
-                | mlhs(item) ',' item
+                | mlhs_items(item) ',' item
                     {
                         $$ = list_append(p, $1, $3);
                     /*% ripper: mlhs_add!($:1, $:3) %*/
@@ -3676,7 +3676,7 @@ mlhs_basic	: mlhs_head
                         $$ = NEW_MASGN($1, $3, &@$);
                     /*% ripper: mlhs_add_star!($:1, $:3) %*/
                     }
-                | mlhs_head tSTAR mlhs_node ',' mlhs(mlhs_item)
+                | mlhs_head tSTAR mlhs_node ',' mlhs_items(mlhs_item)
                     {
                         $$ = NEW_MASGN($1, NEW_POSTARG($3,$5,&@$), &@$);
                     /*% ripper: mlhs_add_post!(mlhs_add_star!($:1, $:3), $:5) %*/
@@ -3686,7 +3686,7 @@ mlhs_basic	: mlhs_head
                         $$ = NEW_MASGN($1, NODE_SPECIAL_NO_NAME_REST, &@$);
                     /*% ripper: mlhs_add_star!($:1, Qnil) %*/
                     }
-                | mlhs_head tSTAR ',' mlhs(mlhs_item)
+                | mlhs_head tSTAR ',' mlhs_items(mlhs_item)
                     {
                         $$ = NEW_MASGN($1, NEW_POSTARG(NODE_SPECIAL_NO_NAME_REST, $4, &@$), &@$);
                     /*% ripper: mlhs_add_post!(mlhs_add_star!($:1, Qnil), $:4) %*/
@@ -3696,7 +3696,7 @@ mlhs_basic	: mlhs_head
                         $$ = NEW_MASGN(0, $2, &@$);
                     /*% ripper: mlhs_add_star!(mlhs_new!, $:2) %*/
                     }
-                | tSTAR mlhs_node ',' mlhs(mlhs_item)
+                | tSTAR mlhs_node ',' mlhs_items(mlhs_item)
                     {
                         $$ = NEW_MASGN(0, NEW_POSTARG($2,$4,&@$), &@$);
                     /*% ripper: mlhs_add_post!(mlhs_add_star!(mlhs_new!, $:2), $:4) %*/
@@ -3706,7 +3706,7 @@ mlhs_basic	: mlhs_head
                         $$ = NEW_MASGN(0, NODE_SPECIAL_NO_NAME_REST, &@$);
                     /*% ripper: mlhs_add_star!(mlhs_new!, Qnil) %*/
                     }
-                | tSTAR ',' mlhs(mlhs_item)
+                | tSTAR ',' mlhs_items(mlhs_item)
                     {
                         $$ = NEW_MASGN(0, NEW_POSTARG(NODE_SPECIAL_NO_NAME_REST, $3, &@$), &@$);
                     /*% ripper: mlhs_add_post!(mlhs_add_star!(mlhs_new!, Qnil), $:3) %*/
@@ -4917,17 +4917,17 @@ f_marg		: f_norm_arg
                 ;
 
 
-f_margs		: mlhs(f_marg)
+f_margs		: mlhs_items(f_marg)
                     {
                         $$ = NEW_MASGN($1, 0, &@$);
                     /*% ripper: $:1 %*/
                     }
-                | mlhs(f_marg) ',' f_rest_marg
+                | mlhs_items(f_marg) ',' f_rest_marg
                     {
                         $$ = NEW_MASGN($1, $3, &@$);
                     /*% ripper: mlhs_add_star!($:1, $:3) %*/
                     }
-                | mlhs(f_marg) ',' f_rest_marg ',' mlhs(f_marg)
+                | mlhs_items(f_marg) ',' f_rest_marg ',' mlhs_items(f_marg)
                     {
                         $$ = NEW_MASGN($1, NEW_POSTARG($3, $5, &@$), &@$);
                     /*% ripper: mlhs_add_post!(mlhs_add_star!($:1, $:3), $:5) %*/
@@ -4937,7 +4937,7 @@ f_margs		: mlhs(f_marg)
                         $$ = NEW_MASGN(0, $1, &@$);
                     /*% ripper: mlhs_add_star!(mlhs_new!, $:1) %*/
                     }
-                | f_rest_marg ',' mlhs(f_marg)
+                | f_rest_marg ',' mlhs_items(f_marg)
                     {
                         $$ = NEW_MASGN(0, NEW_POSTARG($1, $3, &@$), &@$);
                     /*% ripper: mlhs_add_post!(mlhs_add_star!(mlhs_new!, $:1), $:3) %*/