Bug 1332691: Add the metadata directory for the wasm WPT directory; r=jgraham

MozReview-Commit-ID: 9h4t9ZDPN7C --HG-- extra : rebase_source : 38845449f3496e7a4f01f43a7156b81aa053f30e
2017-02-17 18:08:41 +01:00 · 2017-02-17 18:08:41 +01:00 · 60623bd72c
--- a/testing/web-platform/mozilla/meta/wasm/dir.ini
+++ b/testing/web-platform/mozilla/meta/wasm/dir.ini
@ -0,0 +1 @@
+prefs: [javascript.options.wasm:true]