move node types, stub node modules

Summary: This diff stubs all node modules when running in the browser, so that, albeit with a lot of errors and without plugins, the UI loads in a browser. To be continued in the rest of this diff

Reviewed By: antonk52

Differential Revision: D32665705

fbshipit-source-id: 4632e241f59c5b9712a41d01a26878afb01f69b5

desktop/flipper-ui-core/src/global.ts

@@ -20,10 +20,6 @@ declare global {
       | undefined
       | (StoreEnhancerStoreCreator & StoreEnhancerStateSanitizer);
 
-    Flipper: {
-      init: () => void;
-    };
-
     FlipperRenderHostInstance: RenderHost;
   }
 }

desktop/flipper-ui-core/src/utils/fbEmployee.tsx

@@ -9,20 +9,21 @@
 
 import util from 'util';
 import {exec as execImport} from 'child_process';
-const exec = util.promisify(execImport);
 
 const cmd = 'klist --json';
 const endWith = '@THEFACEBOOK.COM';
 
 export async function isFBEmployee(): Promise<boolean> {
-  return exec(cmd).then(
-    (stdobj: {stderr: string; stdout: string}) => {
-      const principal = String(JSON.parse(stdobj.stdout).principal);
+  return util
+    .promisify(execImport)(cmd)
+    .then(
+      (stdobj: {stderr: string; stdout: string}) => {
+        const principal = String(JSON.parse(stdobj.stdout).principal);
 
-      return principal.endsWith(endWith);
-    },
-    (_err: Error) => {
-      return false;
-    },
-  );
+        return principal.endsWith(endWith);
+      },
+      (_err: Error) => {
+        return false;
+      },
+    );
 }