fix(bundle): fix directory index resolution

Closes #537

src/compiler/bundle/rollup-plugins/local-resolution.ts

@@ -2,9 +2,9 @@ import { CompilerCtx, Config } from '../../../declarations';
 import { normalizePath } from '../../util';
 
 
-export default function localResolver(config: Config, compilerCtx: CompilerCtx) {
+export default function localResolution(config: Config, compilerCtx: CompilerCtx) {
   return {
-    name: 'localResolverPlugin',
+    name: 'localResolution',
 
     async resolveId(importee: string, importer: string) {
       importee = normalizePath(importee);
@@ -28,9 +28,8 @@ export default function localResolver(config: Config, compilerCtx: CompilerCtx)
       const dirIndexFile = config.sys.path.join(directory + importee, 'index.js');
 
       let stats;
-
       try {
-        stats = await compilerCtx.fs.stat(importee);
+        stats = await compilerCtx.fs.stat(dirIndexFile);
       } catch (e) {
         return null;
       }

src/compiler/bundle/test/bundle.spec.ts

@@ -10,11 +10,42 @@ describe('bundle', () => {
 
   beforeEach(async () => {
     c = new TestingCompiler();
-    await c.fs.writeFile('/src/index.html', `<cmp-a></cmp-a>`);
     await c.fs.commit();
   });
 
 
+  it('should resolve directory index w/ exports', async () => {
+    c.config.bundles = [ { components: ['x-bar']} ];
+    await c.fs.writeFiles({
+      '/src/components/bar/bar.tsx': `
+        import { foo } from '../../utils';
+        @Component({
+          tag: 'x-bar'
+        })
+        export class Bar {
+          render() {
+            foo();
+            return <div/>;
+          }
+        }
+      `,
+      '/src/utils/index.ts': `
+        export * from './foo';
+      `,
+      '/src/utils/foo.ts': `
+        export const foo = () => {
+          console.log('foo');
+        };
+      `,
+    }, { clearFileCache: true });
+
+    await c.fs.commit();
+
+    const r = await c.build();
+    expect(r.diagnostics).toEqual([]);
+
+  });
+
   it('wildcard imports should remain within component files', async () => {
     c.config.bundles = [ { components: ['cmp-a']}, { components: ['cmp-b'] } ];
     await c.fs.writeFiles({