Scoped: update experimental/codemods to @babel/ [skip ci]

codemods/babel-plugin-codemod-optional-catch-binding/README.md

@@ -50,7 +50,7 @@ babel --plugins codemod-optional-catch-binding script.js
 ### Via Node API
 
 ```javascript
-require("babel-core").transform("code", {
+require("@babel/core").transform("code", {
   plugins: ["codemod-optional-catch-binding"]
 });
 ```

codemods/babel-plugin-codemod-optional-catch-binding/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "babel-plugin-codemod-optional-catch-binding",
+  "name" : "@babel/plugin-codemod-optional-catch-binding",
   "version": "7.0.0-beta.3",
   "description": "Remove unused catch bindings",
   "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-remove-unused-catch-binding",
@@ -9,9 +9,9 @@
     "babel-plugin"
   ],
   "dependencies": {
-    "babel-plugin-syntax-optional-catch-binding": "7.0.0-beta.3"
+    "@babel/plugin-syntax-optional-catch-binding": "7.0.0-beta.3"
   },
   "devDependencies": {
-    "babel-helper-plugin-test-runner": "7.0.0-beta.3"
+    "@babel/helper-plugin-test-runner": "7.0.0-beta.3"
   }
 }

codemods/babel-plugin-codemod-optional-catch-binding/src/index.js

@@ -1,4 +1,4 @@
-import syntaxOptionalCatchBinding from "babel-plugin-syntax-optional-catch-binding";
+import syntaxOptionalCatchBinding from "@babel/plugin-syntax-optional-catch-binding";
 
 export default function(babel) {
   const { types: t } = babel;

codemods/babel-plugin-codemod-optional-catch-binding/test/index.js

@@ -1,3 +1,3 @@
-import runner from "babel-helper-plugin-test-runner";
+import runner from "@babel/helper-plugin-test-runner";
 
 runner(__dirname);