[test] Use test-specs for linux_rel_ng trybot

Bug: chromium:830557
Change-Id: If06a39b5c26c9c736d313c2c06950b800f241423
Reviewed-on: https://chromium-review.googlesource.com/1032750
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52915}

infra/testing/tryserver.v8.pyl

@@ -10,27 +10,44 @@
   #   ],
   # },
 
-  'v8_linux64_fyi_rel_ng_triggered': {
+  'v8_linux_gc_stress_dbg': {
     'tests': [
-      {'name': 'v8testing', 'variant': 'infra_staging', 'shards': 2},
-      {'name': 'test262_variants', 'variant': 'infra_staging', 'shards': 2},
-      {'name': 'mjsunit', 'variant': 'stress_sampling', 'shards': 1},
-      {'name': 'webkit', 'variant': 'stress_sampling', 'shards': 1},
+      {'name': 'mjsunit', 'variant': 'slow_path', 'shards': 2},
     ],
   },
-  'v8_linux64_rel_ng_triggered': {
+  'v8_linux_rel_ng_triggered': {
+    'tests': [
+      {'name': 'benchmarks'},
+      {'name': 'benchmarks', 'variant': 'extra'},
+      {'name': 'gcmole'},
+      {'name': 'mjsunit_sp_frame_access'},
+      {'name': 'mozilla'},
+      {'name': 'mozilla', 'variant': 'extra'},
+      {'name': 'optimize_for_size'},
+      {'name': 'test262_variants', 'shards': 4},
+      {'name': 'test262_variants', 'shards': 2, 'variant': 'extra'},
+      {'name': 'v8testing'},
+      {'name': 'v8testing', 'variant': 'extra'},
+    ],
+  },
+  'v8_linux64_asan_rel_ng_triggered': {
     'tests': [
-      {'name': 'v8testing', 'variant': 'minor_mc', 'shards': 1},
       {'name': 'v8testing', 'variant': 'slow_path', 'shards': 1},
     ],
   },
-  'v8_linux_gc_stress_dbg': {
+  'v8_linux64_fyi_rel_ng_triggered': {
     'tests': [
-      {'name': 'mjsunit', 'variant': 'slow_path', 'shards': 2},
+      # Stress sampling.
+      {'name': 'mjsunit', 'shards': 1, 'variant': 'stress_sampling'},
+      {'name': 'webkit', 'shards': 1, 'variant': 'stress_sampling'},
+      # Infra staging.
+      {'name': 'test262_variants', 'shards': 2, 'variant': 'infra_staging'},
+      {'name': 'v8testing', 'shards': 2, 'variant': 'infra_staging'},
     ],
   },
-  'v8_linux64_asan_rel_ng_triggered': {
+  'v8_linux64_rel_ng_triggered': {
     'tests': [
+      {'name': 'v8testing', 'variant': 'minor_mc', 'shards': 1},
       {'name': 'v8testing', 'variant': 'slow_path', 'shards': 1},
     ],
   },