bug 667166 - apply 'locl' feature early along with 'ccmp', before Arabic-specific shaping features. r=jdaggett

gfx/harfbuzz/src/hb-ot-shape.cc

@@ -44,7 +44,7 @@ struct {
   { HB_TAG('c','u','r','s'), DEFAULT_PRIORITY },
   { HB_TAG('k','e','r','n'), DEFAULT_PRIORITY },
   { HB_TAG('l','i','g','a'), DEFAULT_PRIORITY },
-  { HB_TAG('l','o','c','l'), DEFAULT_PRIORITY },
+  { HB_TAG('l','o','c','l'), FIRST_PRIORITY },
   { HB_TAG('m','a','r','k'), DEFAULT_PRIORITY },
   { HB_TAG('m','k','m','k'), DEFAULT_PRIORITY },
   { HB_TAG('r','l','i','g'), DEFAULT_PRIORITY }