Support API aliases

tools/json_schema_compiler/test/features_test.json

Index: tools/json_schema_compiler/test/features_test.json
diff --git a/tools/json_schema_compiler/test/features_test.json b/tools/json_schema_compiler/test/features_test.json
index a26901fffce558220bfea71889e644207f7bc9c2..900e9ecc9220e4b7fb3a5fe24c66e02684ecd623 100644
--- a/tools/json_schema_compiler/test/features_test.json
+++ b/tools/json_schema_compiler/test/features_test.json
@@ -74,5 +74,69 @@
   "uncompiled": {
     "contexts": ["blessed_extension"],
     "nocompile": true
+  },
+  "alias": {
+    "channel": "stable",
+    "contexts": ["blessed_extension"],
+    "source": "alias_source"
+  },
+  "alias_source": {
+    "channel": "stable",
+    "contexts": ["blessed_extension"],
+    "alias": "alias"
+  },
+  "complex_alias": [{
+    "channel": "beta",
+    "contexts": ["blessed_extension"],
+    "source": "complex_alias_source"
+  }, {
+    "channel": "dev",
+    "contexts": ["webui"]
+  }],
+  "complex_alias_source": [{
+    "channel": "beta",
+    "contexts": ["blessed_extension"],
+    "alias": "complex_alias"
+  }, {
+    "channel": "dev",
+    "contexts": ["webui"]
+  }],
+  "parent_source" : {
+    "channel": "beta",
+    "contexts": ["blessed_extension"],
+    "alias": "parent_source_alias"
+  },
+  "parent_source.child" : {
+    "channel": "beta",
+    "contexts": ["blessed_extension"]
+  },
+  "parent_source.child_source" : {

[Devlin, 2016/11/28 20:42:22]

Wild.  I'm not entirely sure we want to use this, but it's cool that it works.
:)

[tbarzic, 2016/11/28 21:43:52]

Yeah, I was mostly concerned that this might be needed for some future shared
values.

+    "channel": "beta",
+    "contexts": ["blessed_extension"],
+    "alias": "parent_source_child_alias"
+  },
+  "parent_source_alias": {
+    "channel": "beta",
+    "contexts": ["blessed_extension"],
+    "source": "parent_source"
+  },
+  "parent_source_child_alias": {
+    "channel": "beta",
+    "contexts": ["blessed_extension"],
+    "source": "parent_source.child_source"
+  },
+  "alias_parent": {
+    "channel": "beta",
+    "contexts": ["blessed_extension"]
+  },
+  "alias_parent.child": {
+    "channel": "beta",
+    "contexts": ["blessed_extension"],
+    "source": "child_source"
+  },
+  "child_source": {
+    "channel": "beta",
+    "contexts": ["blessed_extension"],
+    "alias": "alias_parent.child"
   }
 }