ko1	2018-01-09 01:00:38 +0900 (Tue, 09 Jan 2018)

  New Revision: 61693

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61693

  Log:
    fix a bug only on assertion.
    
    * vm.c (rb_execution_context_mark): check escaped directly
      to skip assertions. Not sure why there is an inconsistency.

  Modified files:
    trunk/vm.c
Index: vm.c
===================================================================
--- vm.c	(revision 61692)
+++ vm.c	(revision 61693)
@@ -2364,7 +2364,7 @@ rb_execution_context_mark(const rb_execu https://github.com/ruby/ruby/blob/trunk/vm.c#L2364
 
 	    if (!VM_ENV_LOCAL_P(ep)) {
 		const VALUE *prev_ep = VM_ENV_PREV_EP(ep);
-		if (VM_ENV_ESCAPED_P(prev_ep)) {
+		if (VM_ENV_FLAGS(prev_ep, VM_ENV_FLAG_ESCAPED)) {
 		    rb_gc_mark(prev_ep[VM_ENV_DATA_INDEX_ENV]);
 		}
 	    }

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