Bug 1282850 - bump fennec debug builds and tests to tier 1 in Taskcluster, r=gbrown

looks like we have to be more explicit with each build and suite compared to
https://bugzilla.mozilla.org/show_bug.cgi?id=1243024

but the way we bump this to tier 1 will likely change as
https://bugzilla.mozilla.org/show_bug.cgi?id=1281004 lands

as per dev.planning announcement and coop's email, we are going to try making
tc tier 2 jobs more critical for less critical jobs, e.g. debug builds, by
making them tier 1.

MozReview-Commit-ID: 4IwNCjOHo7x

--HG--
extra : source : 0b6844851660c49267f74d589345ebdaeb304db6
extra : amend_source : cd1507f8d9c6be75c68929051bbf8ee30cfe9cee

taskcluster/ci/legacy/tasks/builds/android_api_15_debug.yml

@@ -54,7 +54,7 @@ task:
       groupSymbol: tc
       groupName: Submitted by taskcluster
       symbol: B
-      tier: 2
+      tier: 1
       collection:
         debug: true
     # Rather then enforcing particular conventions we require that all build

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_cppunit_dbg.yml

@@ -6,4 +6,4 @@ task:
       - --download-symbols=true
   extra:
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_crashtest_dbg.yml

@@ -10,4 +10,4 @@ task:
     chunks:
       total: 10
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_jsreftest_dbg.yml

@@ -10,4 +10,4 @@ task:
     chunks:
       total: 20
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_mochitest_chrome_dbg.yml

@@ -6,4 +6,4 @@ task:
       - --download-symbols=true
   extra:
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_mochitest_clipboard_dbg.yml

@@ -6,4 +6,4 @@ task:
       - --download-symbols=true
   extra:
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_mochitest_gl_dbg.yml

@@ -7,4 +7,4 @@ task:
       - --download-symbols=true
   extra:
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_mochitest_gpu_dbg.yml

@@ -6,4 +6,4 @@ task:
       - --download-symbols=true
   extra:
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_mochitest_media_dbg.yml

@@ -7,4 +7,4 @@ task:
       - --download-symbols=true
   extra:
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_mochitest_plain_dbg.yml

@@ -7,4 +7,4 @@ task:
       - --download-symbols=true
   extra:
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_reftest_dbg.yml

@@ -10,4 +10,4 @@ task:
     chunks:
       total: 48
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_robocop_dbg.yml

@@ -6,4 +6,4 @@ task:
       - --download-symbols=true
   extra:
     treeherder:
-      tier: 2
+      tier: 1

taskcluster/ci/legacy/tasks/tests/fx_android-api-15_xpcshell_dbg.yml

@@ -6,4 +6,4 @@ task:
       - --download-symbols=true
   extra:
     treeherder:
-      tier: 2
+      tier: 1