Bug 1143056 - Enable Emulator L by default on treeheder prod r=me a=taskcluster-only

--HG--
extra : rebase_source : f74e19c725a38489d020414f793ada524de7158c

testing/taskcluster/tasks/branches/mozilla-central/job_flags.yml

@@ -28,6 +28,14 @@ builds:
         task: tasks/builds/b2g_emulator_kk_opt.yml
       debug:
         task: tasks/builds/b2g_emulator_kk_debug.yml
+  emulator-l:
+    platfoms:
+      - b2g
+    types:
+      opt:
+        task: tasks/builds/b2g_emulator_l_opt.yml
+      debug:
+        task: tasks/builds/b2g_emulator_l_debug.yml
   emulator-jb:
     platfoms:
       - b2g

testing/taskcluster/tasks/builds/b2g_emulator_l_debug.yml

@@ -5,10 +5,15 @@ task:
   scopes:
     - 'docker-worker:cache:workspace-emulator-l-debug'
   metadata:
-    name: '[TC] B2G Emulator L Debug'
+    name: '[TC] B2G Emulator L (Debug)'
 
   extra:
+    treeherderEnv:
+      - production
+      - staging
     treeherder:
+      # Disable "TC" prefix...
+      groupSymbol: "?"
       collection:
         debug: true
       machine:

testing/taskcluster/tasks/builds/b2g_emulator_l_opt.yml

@@ -5,10 +5,15 @@ task:
   scopes:
     - 'docker-worker:cache:workspace-emulator-l-opt'
   metadata:
-    name: '[TC] B2G L Emulator Opt'
+    name: '[TC] B2G L Emulator (Opt)'
 
   extra:
+    treeherderEnv:
+      - production
+      - staging
     treeherder:
+      # Disable "TC" prefix...
+      groupSymbol: "?"
       machine:
         platform: b2g-emu-l