isolate: add run_isolated, deprecate runtest

scripts/slave/recipe_modules/isolate/example.expected/missing.json

Index: scripts/slave/recipe_modules/isolate/example.expected/missing.json
diff --git a/scripts/slave/recipe_modules/isolate/example.expected/missing.json b/scripts/slave/recipe_modules/isolate/example.expected/missing.json
index 3ed7ba5c556364d008b0f2c1c5734af698845ba9..598dee3ee1c28e10ebbecbd77426f61fcf1064d8 100644
--- a/scripts/slave/recipe_modules/isolate/example.expected/missing.json
+++ b/scripts/slave/recipe_modules/isolate/example.expected/missing.json
@@ -132,5 +132,20 @@
       "@@@STEP_LOG_END@failed to isolate@@@",
       "@@@SET_BUILD_PROPERTY@swarm_hashes@{\"test1\": \"[dummy hash for test1]\"}@@@"
     ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "[SLAVE_BUILD]/swarming.client/run_isolated.py",
+      "--isolated",
+      "7b28d637ab6bb2516584c21e1098736682457f11",
+      "-I",
+      "https://isolateserver-dev.appspot.com",
+      "--verbose",
+      "--"
+    ],
+    "cwd": "[SLAVE_BUILD]",
+    "name": "base_unittests"
   }
 ]