tryserver recipe_module: Add get_tags.

recipe_modules/depot_tools/example.expected/basic.json

Index: recipe_modules/depot_tools/example.expected/basic.json
diff --git a/recipe_modules/depot_tools/example.expected/basic.json b/recipe_modules/depot_tools/example.expected/basic.json
new file mode 100644
index 0000000000000000000000000000000000000000..a5a3b85ce779441ca232efe269605917b1ea417f
--- /dev/null
+++ b/recipe_modules/depot_tools/example.expected/basic.json
@@ -0,0 +1,37 @@
+[
+  {
+    "cmd": [
+      "Path('RECIPE_PACKAGE_REPO[depot_tools]', 'download_from_google_storage.py')"
+    ],
+    "name": "download_from_google_storage"
+  },
+  {
+    "cmd": [
+      "Path('RECIPE_PACKAGE_REPO[depot_tools]', 'cros')"

[iannucci, 2016/05/12 00:25:52]

hm... did this change? I'd expect for these to be rendered like
`RECIPE_PACKAGE_REPO[depot_tools]/cros`?

[martiniss, 2016/05/13 19:23:56]

This was wrong, I fixed; see new patch for comments though.

+    ],
+    "name": "cros"
+  },
+  {
+    "cmd": [
+      "Path('RECIPE_PACKAGE_REPO[depot_tools]', 'gn.py')"
+    ],
+    "name": "gn_py_path"
+  },
+  {
+    "cmd": [
+      "Path('RECIPE_PACKAGE_REPO[depot_tools]', 'gsutil.py')"
+    ],
+    "name": "gsutil_py_path"
+  },
+  {
+    "cmd": [
+      "Path('RECIPE_PACKAGE_REPO[depot_tools]', 'ninja')"
+    ],
+    "name": "ninja_path"
+  },
+  {
+    "name": "$result",
+    "recipe_result": null,
+    "status_code": 0
+  }
+]