Refactor stages 1, 2 and test_api overhaul.

scripts/slave/recipes/bisection/desktop_bisect.expected/basic.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "\nimport sys, os\npath = sys.argv[1]\nmode = int(sys.argv[2])\nif not os.path.isdir(path):\n  if os.path.exists(path):\n    print \"%s exists but is not a dir\" % path\n    sys.exit(1)\n  os.makedirs(path, mode)\n",
       "[BUILDER_CACHE]/linux_perf_bisect",
       "511"
     ],
     "name": "makedirs checkout path",
@@ skipping 259 matching lines @@
     "name": "git diff to analyze patch",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@files@tools/auto_bisect/bisect.cfg@@@",
       "@@@STEP_LOG_END@files@@@"
     ]
   },
   {
     "cmd": [],
     "cwd": "[BUILDER_CACHE]/linux_perf_bisect",
-    "name": "***LEGACY BISECT (deprecated)***"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "[BUILDER_CACHE]/linux_perf_bisect/src/tools/prepare-bisect-perf-regression.py",
-      "-w",
-      "[CACHE]/bisect"
-    ],
-    "cwd": "[BUILDER_CACHE]/linux_perf_bisect",
-    "name": "Preparing for Bisection"
-  },
-  {
-    "cmd": [],
-    "cwd": "[BUILDER_CACHE]/linux_perf_bisect",
-    "name": "ensure_goma (2)"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::cipd]/resources/bootstrap.py",
-      "--platform",
-      "linux-amd64",
-      "--dest-directory",
-      "[SLAVE_BUILD]/cipd",
-      "--json-output",
-      "/path/to/tmp/json"
-    ],
-    "cwd": "[BUILDER_CACHE]/linux_perf_bisect",
-    "name": "ensure_goma.install cipd (2)",
+    "name": "***LEGACY BISECT HAS BEEN DEPRECATED***",
     "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_TEXT@cipd instance_id: 40-chars-fake-of-the-package-instance_id@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"executable\": \"[SLAVE_BUILD]/cipd/cipd\", @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"instance_id\": \"40-chars-fake-of-the-package-instance_id\"@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
+      "@@@STEP_FAILURE@@@"
     ]
   },
   {
-    "cmd": [
-      "[SLAVE_BUILD]/cipd/cipd",
-      "ensure",
-      "--root",
-      "[CACHE]/cipd/goma",
-      "--list",
-      "infra/tools/cloudtail/linux-amd64 goma_recipe_module\ninfra_internal/goma/client/linux-amd64 release",
-      "--json-output",
-      "/path/to/tmp/json",
-      "--service-account-json",
-      "/creds/service_accounts/service-account-goma-client.json"
-    ],
-    "cwd": "[BUILDER_CACHE]/linux_perf_bisect",
-    "name": "ensure_goma.ensure_installed (2)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"result\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"instance_id\": \"resolved-instance_id-of-goma_recipe_modu\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"package\": \"infra/tools/cloudtail/linux-amd64\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }, @@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"instance_id\": \"resolved-instance_id-of-release---------\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"package\": \"infra_internal/goma/client/linux-amd64\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  ]@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "allow_subannotations": true,
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
-      "--target",
-      "Release",
-      "--xvfb",
-      "--factory-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"buildername\": \"linux_perf_bisect\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium.perf\", \"patch_project\": \"chromium\", \"patchset\": 1, \"path_config\": \"kitchen\", \"project\": \"chrome\", \"recipe\": \"bisection/desktop_bisect\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://codereview.chromium.org\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--build-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"buildername\": \"linux_perf_bisect\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium.perf\", \"patch_project\": \"chromium\", \"patchset\": 1, \"path_config\": \"kitchen\", \"project\": \"chrome\", \"recipe\": \"bisection/desktop_bisect\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://codereview.chromium.org\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--step-name=Running Bisection",
-      "--builder-name=linux_perf_bisect",
-      "--slave-name=TestSlavename",
-      "--build-number=571",
-      "--run-python-script",
-      "[BUILDER_CACHE]/linux_perf_bisect/src/tools/run-bisect-perf-regression.py",
-      "-w",
-      "[CACHE]/bisect",
-      "--path_to_goma",
-      "[CACHE]/cipd/goma",
-      "--build-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"buildername\": \"linux_perf_bisect\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium.perf\", \"patch_project\": \"chromium\", \"patchset\": 1, \"path_config\": \"kitchen\", \"project\": \"chrome\", \"recipe\": \"bisection/desktop_bisect\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://codereview.chromium.org\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}"
-    ],
-    "cwd": "[BUILDER_CACHE]/linux_perf_bisect",
-    "name": "Running Bisection"
-  },
-  {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]