Move relay-experimental to fbsource

Reviewed By: josephsavona

Differential Revision: D16857008

fbshipit-source-id: cd5881f50fb8baca544de9edeff0ad86395004c9

flow-typed/fbjs.js.flow

@@ -4,4 +4,22 @@ declare module 'mapObject' {
 
 declare module 'ErrorUtils' {
   declare module.exports: any;
-}
+}
+
+declare module 'warning' {
+  declare module.exports: (
+    condition: boolean,
+    format: string,
+    ...args: $ReadOnlyArray<mixed>
+  ) => void;
+}
+
+declare module 'fbjs/lib/ExecutionEnvironment' {
+  declare module.exports: {
+    canUseDOM: boolean,
+  };
+}
+
+declare module 'react-test-renderer' {
+  declare module.exports: any;
+}