Split exportExtensions into exportDefault and exportNamespace plugins… (#6920)

* Split exportExtensions into two plugins in babylon
* rename proposal-export-default to proposal-export-default-from
* rename proposal-export-namespace to proposal-export-namespace-from

packages/babel-plugin-syntax-export-namespace-from/.npmignore

@@ -0,0 +1,3 @@
+src
+test
+*.log

packages/babel-plugin-syntax-export-namespace-from/README.md

@@ -0,0 +1,35 @@
+# @babel/plugin-syntax-export-namespace-from
+
+> Allow parsing of `export * as namespace from`.
+
+## Installation
+
+```sh
+npm install --save-dev @babel/plugin-syntax-export-namespace-from
+```
+
+## Usage
+
+### Via `.babelrc` (Recommended)
+
+**.babelrc**
+
+```json
+{
+  "plugins": ["@babel/plugin-syntax-export-namespace-from"]
+}
+```
+
+### Via CLI
+
+```sh
+babel --plugins @babel/plugin-syntax-export-namespace-from script.js
+```
+
+### Via Node API
+
+```javascript
+require("@babel/core").transform("code", {
+  plugins: ["@babel/plugin-syntax-export-namespace-from"]
+});
+```

packages/babel-plugin-syntax-export-namespace-from/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "@babel/plugin-syntax-export-namespace-from",
+  "version": "7.0.0-beta.32",
+  "description": "Allow parsing of export namespace from",
+  "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-syntax-export-namespace-from",
+  "license": "MIT",
+  "main": "lib/index.js",
+  "keywords": [
+    "babel-plugin"
+  ],
+  "peerDependencies": {
+    "@babel/core": "7.0.0-beta.32"
+  },
+  "devDependencies": {
+    "@babel/core": "7.0.0-beta.32"
+  }
+}

packages/babel-plugin-syntax-export-namespace-from/src/index.js

@@ -0,0 +1,7 @@
+export default function() {
+  return {
+    manipulateOptions(opts, parserOpts) {
+      parserOpts.plugins.push("exportNamespaceFrom");
+    },
+  };
+}