metro-bundler: downgrade block-scoping Babel plugin

Summary: Downgrade the locked version of Babel block scoping, kinda temporarily until we upgrade internally. This makes in on par with the version we use internally, so that the `basic_bundle` test had the same results on both infrastructures. This doesn't change a single thing for `metro-bundler` consumers, because this `yarn.lock` file is only used for testing/CI, not when the library is installed as part of a project.

Reviewed By: cpojer

Differential Revision: D5442368

fbshipit-source-id: f3033e450855f7d61ac775a46719d7b1743960c5

packages/metro-bundler/src/integration_tests/__tests__/__snapshots__/basic_bundle-test.js.snap

@@ -143,9 +143,12 @@ function moduleThrewError(id, error) {
 }
 
 if (__DEV__) {
+  var createHotReloadingObject;
+
+  (function () {
     _require.Systrace = { beginEvent: function beginEvent() {}, endEvent: function endEvent() {} };
 
-  var createHotReloadingObject = function createHotReloadingObject() {
+    createHotReloadingObject = function createHotReloadingObject() {
       var hot = {
         acceptCallback: null,
         accept: function accept(callback) {
@@ -161,7 +164,7 @@ if (__DEV__) {
       }
 
       var notAccepted = dependentModules.filter(function (module) {
-      return !_accept(module, undefined, inverseDependencies);
+        return !accept(module, undefined, inverseDependencies);
       });
 
       var parents = [];
@@ -176,7 +179,7 @@ if (__DEV__) {
       return acceptAll(parents, inverseDependencies);
     };
 
-  var _accept = function _accept(id, factory, inverseDependencies) {
+    var accept = function accept(id, factory, inverseDependencies) {
       var mod = modules[id];
 
       if (!mod && factory) {
@@ -210,7 +213,8 @@ if (__DEV__) {
       }
     };
 
-  global.__accept = _accept;
+    global.__accept = accept;
+  })();
 }
 })(typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : this);
 (function(global) {
@@ -404,9 +408,12 @@ function moduleThrewError(id, error) {
 }
 
 if (__DEV__) {
+  var createHotReloadingObject;
+
+  (function () {
     _require.Systrace = { beginEvent: function beginEvent() {}, endEvent: function endEvent() {} };
 
-  var createHotReloadingObject = function createHotReloadingObject() {
+    createHotReloadingObject = function createHotReloadingObject() {
       var hot = {
         acceptCallback: null,
         accept: function accept(callback) {
@@ -422,7 +429,7 @@ if (__DEV__) {
       }
 
       var notAccepted = dependentModules.filter(function (module) {
-      return !_accept(module, undefined, inverseDependencies);
+        return !accept(module, undefined, inverseDependencies);
       });
 
       var parents = [];
@@ -437,7 +444,7 @@ if (__DEV__) {
       return acceptAll(parents, inverseDependencies);
     };
 
-  var _accept = function _accept(id, factory, inverseDependencies) {
+    var accept = function accept(id, factory, inverseDependencies) {
       var mod = modules[id];
 
       if (!mod && factory) {
@@ -471,7 +478,8 @@ if (__DEV__) {
       }
     };
 
-  global.__accept = _accept;
+    global.__accept = accept;
+  })();
 }
 })(typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : this);
 (function(global) {

packages/metro-bundler/yarn.lock

@@ -305,13 +305,13 @@ babel-plugin-transform-es2015-block-scoped-functions@^6.8.0:
     babel-runtime "^6.22.0"
 
 babel-plugin-transform-es2015-block-scoping@^6.5.0, babel-plugin-transform-es2015-block-scoping@^6.8.0:
-  version "6.24.1"
+  version "6.18.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-block-scoping/-/babel-plugin-transform-es2015-block-scoping-6.24.1.tgz#76c295dc3a4741b1665adfd3167215dcff32a576"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-block-scoped-functions/-/babel-plugin-transform-es2015-block-scoping-6.18.0.tgz#3bfdcfec318d46df22525cdea88f1978813653af"
   dependencies:
-    babel-runtime "^6.22.0"
+    babel-runtime "^6.9.0"
-    babel-template "^6.24.1"
+    babel-template "^6.15.0"
-    babel-traverse "^6.24.1"
+    babel-traverse "^6.18.0"
-    babel-types "^6.24.1"
+    babel-types "^6.18.0"
     lodash "^4.2.0"
 
 babel-plugin-transform-es2015-classes@^6.5.0, babel-plugin-transform-es2015-classes@^6.8.0:
@@ -582,14 +582,14 @@ babel-register@^6.24.1:
     mkdirp "^0.5.1"
     source-map-support "^0.4.2"
 
-babel-runtime@^6.18.0, babel-runtime@^6.22.0:
+babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.9.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.23.0.tgz#0a9489f144de70efb3ce4300accdb329e2fc543b"
   dependencies:
     core-js "^2.4.0"
     regenerator-runtime "^0.10.0"
 
-babel-template@^6.24.1:
+babel-template@^6.15.0, babel-template@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.24.1.tgz#04ae514f1f93b3a2537f2a0f60a5a45fb8308333"
   dependencies:
@@ -599,7 +599,7 @@ babel-template@^6.24.1:
     babylon "^6.11.0"
     lodash "^4.2.0"
 
-babel-traverse@^6.24.1:
+babel-traverse@^6.18.0, babel-traverse@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.24.1.tgz#ab36673fd356f9a0948659e7b338d5feadb31695"
   dependencies:
@@ -613,7 +613,7 @@ babel-traverse@^6.24.1:
     invariant "^2.2.0"
     lodash "^4.2.0"
 
-babel-types@^6.19.0, babel-types@^6.24.1:
+babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.24.1.tgz#a136879dc15b3606bda0d90c1fc74304c2ff0975"
   dependencies: