update tests

packages/babel-core/src/transformation/file/index.js

@@ -534,7 +534,7 @@ export default class File extends Store {
 
     if (this.shebang) {
       // add back shebang
-      result.code = `${this.shebang}\n${result.code.trimLeft()}`;
+      result.code = `${this.shebang}\n${result.code}`;
     }
 
     if (result.map) {

packages/babel-core/test/fixtures/transformation/async-to-generator/async/expected.js

@@ -1,7 +1,7 @@
 class Foo {
   foo() {
     return babelHelpers.asyncToGenerator(function* () {
-      var wat = await bar();
+      var wat = yield bar();
     })();
   }
 }

packages/babel-core/test/fixtures/transformation/bluebird-coroutines/class/expected.js

@@ -2,7 +2,7 @@ import { coroutine as _coroutine } from "bluebird";
 class Foo {
   foo() {
     return _coroutine(function* () {
-      var wat = await bar();
+      var wat = yield bar();
     })();
   }
 }

packages/babel-core/test/fixtures/transformation/misc/shebang/expected.js

@@ -1,3 +1,4 @@
 #!/usr/bin/env node
 
+
 foobar();