Back out 480132: orange on Linux (http://tinderbox.mozilla.org/showlog.cgi?log=TraceMonkey/1237017748.1237029269.2403.gz&fulltext=1)

js/src/jsiter.cpp

@@ -786,8 +786,6 @@ js_NewGenerator(JSContext *cx, JSStackFrame *fp)
     gen->frame.flags = (fp->flags & ~JSFRAME_ROOTED_ARGV) | JSFRAME_GENERATOR;
     gen->frame.dormantNext = NULL;
     gen->frame.xmlNamespace = NULL;
-    /* JSOP_GENERATOR appears in the prologue, outside all blocks.  */
-    JS_ASSERT(!fp->blockChain);
     gen->frame.blockChain = NULL;
 
     /* Note that gen is newborn. */