Adds ability to filter the set of tests that are run by a bot

scripts/slave/recipes/chromium_trybot.expected/compile_because_of_analyze.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/bot_update.py",
       "--master",
       "tryserver.chromium.linux",
       "--builder",
       "linux_chromium_rel",
@@ skipping 78 matching lines @@
     ],
     "cwd": "[SLAVE_BUILD]/src",
     "name": "git diff to analyze patch",
     "stdout": "/path/to/tmp/"
   },
   {
     "cmd": [
       "python",
       "-u",
       "[SLAVE_BUILD]/src/build/gyp_chromium",
-      "--analyzer",
-      "foo.cc"
+      "--analyzer2",

[iannucci, 2014/07/30 01:20:37]

is the analyzer2 syntax extensible enough that you will get some additional
milage out of it without having to resort to bumping this version number up
frequently? just curious :)

[sky, 2014/07/30 21:14:16]

The reason I went with analyzer2 here is to support the old format/args while
transitioning to the new. I need to do the following:
. land this
. make --analyzer the same as --analyzer2
. update this recipe to use --analyzer
. remove --analyzer2
oy!

Now that I'm passing around JSON objects to configure what the analyze step does
hopefully I won't have to do this again. Instead I just add new things to the
JSON object.

+      "{\"files\": [\"foo.cc\"], \"targets\": []}"
     ],
     "name": "analyze",
-    "stdout": "/path/to/tmp/"
+    "stdout": "/path/to/tmp/json",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"status\": \"Found dependency\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"targets\": []@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@"
+    ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
     "env": {
       "GYP_DEFINES": "component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 use_goma=1"
@@ skipping 166 matching lines @@
     "cmd": [
       "python",
       "-u",
       "[SLAVE_BUILD]/src/mojo/tools/run_mojo_python_tests.py",
       "--write-full-results-to",
       "/path/to/tmp/json"
     ],
     "name": "mojo_python_tests (with patch)"
   }
 ]