Merge pull request mruby#6696 from khasinski/fix-required-kwarg-parsing

Author: matz

mrbgems/mruby-compiler/core/parse.y

@@ -4562,11 +4562,15 @@ f_arglist       : f_arglist_paren
 
 f_label         : tIDENTIFIER tLABEL_TAG
                     {
+                      $$ = $1;
                       local_nest(p);
+                      p->lstate = EXPR_ARG;  /* make newlines significant after label */
                     }
                 | tNUMPARAM tLABEL_TAG
                     {
+                      $$ = intern_numparam($1);
                       local_nest(p);
+                      p->lstate = EXPR_ARG;  /* make newlines significant after label */
                     }
                 ;