Fix debug-only crash when doing TMFLAGS=full objdir/js -j t/string-unpack-code.js. no_r=me.

--HG--
extra : rebase_source : f4c43ffeb2fec7de027217500c6a4db7b76724c7

js/src/jsregexp.cpp

@@ -3278,7 +3278,7 @@ class RegExpNativeCompiler {
 #endif
 #ifdef NJ_VERBOSE
         debug_only_stmt( if (LogController.lcbits & LC_TMRegexp)
-                             delete lir; )
+                             delete verbose_filter; )
 #endif
         return JS_FALSE;
     }