[loader] Make recipe engine support examples/ module subdir

recipe_modules/properties/example.expected/buildbot_generic.json

Index: recipe_modules/properties/example.expected/buildbot_generic.json
diff --git a/recipe_modules/properties/example.expected/buildbot_generic.json b/recipe_modules/properties/example.expected/buildbot_generic.json
deleted file mode 100644
index 38d81d2d18cef2fdca973e4faf672af181526683..0000000000000000000000000000000000000000
--- a/recipe_modules/properties/example.expected/buildbot_generic.json
+++ /dev/null
@@ -1,109 +0,0 @@
-[
-  {
-    "cmd": [
-      "echo",
-      "None",
-      "'thing'"
-    ],
-    "name": "echo"
-  },
-  {
-    "cmd": [
-      "echo",
-      "('blamelist', ['cool_dev1337@chromium.org', 'hax@chromium.org'])",
-      "('bot_id', 'test_bot')",
-      "('buildbotURL', 'http://c.org/p/cr/')",
-      "('buildername', 'TestBuilder')",
-      "('buildnumber', 571)",
-      "('foo.bar-bam', 'thing')",
-      "('mastername', 'chromium.testing.master')",
-      "('recipe', 'properties:example')",
-      "('slavename', 'TestSlavename')",
-      "('test_prop', None)",
-      "('workdir', '/path/to/workdir/TestSlavename')"
-    ],
-    "name": "echo all"
-  },
-  {
-    "cmd": [
-      "echo",
-      "'/path/to/workdir/TestSlavename'"
-    ],
-    "name": "echo workdir"
-  },
-  {
-    "cmd": [
-      "echo",
-      "'TestBuilder'"
-    ],
-    "name": "echo buildername"
-  },
-  {
-    "cmd": [
-      "echo",
-      "'properties:example'"
-    ],
-    "name": "echo recipe"
-  },
-  {
-    "cmd": [
-      "echo",
-      "'thing'"
-    ],
-    "name": "echo foo.bar-bam"
-  },
-  {
-    "cmd": [
-      "echo",
-      "'chromium.testing.master'"
-    ],
-    "name": "echo mastername"
-  },
-  {
-    "cmd": [
-      "echo",
-      "571"
-    ],
-    "name": "echo buildnumber"
-  },
-  {
-    "cmd": [
-      "echo",
-      "'TestSlavename'"
-    ],
-    "name": "echo slavename"
-  },
-  {
-    "cmd": [
-      "echo",
-      "('cool_dev1337@chromium.org', 'hax@chromium.org')"
-    ],
-    "name": "echo blamelist"
-  },
-  {
-    "cmd": [
-      "echo",
-      "'http://c.org/p/cr/'"
-    ],
-    "name": "echo buildbotURL"
-  },
-  {
-    "cmd": [
-      "echo",
-      "None"
-    ],
-    "name": "echo test_prop"
-  },
-  {
-    "cmd": [
-      "echo",
-      "'test_bot'"
-    ],
-    "name": "echo bot_id"
-  },
-  {
-    "name": "$result",
-    "recipe_result": null,
-    "status_code": 0
-  }
-]