parse.y: Fix locations of regexp

* parse.y (new_regexp_gen): Always set locations
  to include locations of tREGEXP_BEG and tREGEXP_END.

  e.g. The locations of the NODE_LIT is fixed:

  ```
  /a/
  ```

  * Before

  ```
  NODE_LIT (line: 1, code_range: (1,1)-(1,2))
  ```

  * After

  ```
  NODE_LIT (line: 1, code_range: (1,0)-(1,3))
  ```

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61064 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/parse.y b/parse.y
index 3b35350a07..de40286088 100644
--- a/parse.y
+++ b/parse.y
@@ -9422,15 +9422,16 @@ new_regexp_gen(struct parser_params *parser, NODE *node, int options, const YYLT
 	{
 	    VALUE src = node->nd_lit;
 	    nd_set_type(node, NODE_LIT);
+	    nd_set_loc(node, location);
 	    add_mark_object(node->nd_lit = reg_compile(src, options));
 	}
 	break;
       default:
 	add_mark_object(lit = STR_NEW0());
 	node = NEW_NODE(NODE_DSTR, lit, 1, new_list(node, location));
-	nd_set_loc(node, location);
       case NODE_DSTR:
 	nd_set_type(node, NODE_DREGX);
+	nd_set_loc(node, location);
 	node->nd_cflag = options & RE_OPTION_MASK;
 	if (!NIL_P(node->nd_lit)) reg_fragment_check(node->nd_lit, options);
 	for (list = (prev = node)->nd_next; list; list = list->nd_next) {