fix(babel): Switch from external to runtime helpers

Author: swederik

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-cornerstone-viewport",
-  "version": "0.1.24",
+  "version": "0.1.25",
   "description": "Cornerstone medical image viewport component for React",
   "author": "Cornerstone Contributors",
   "license": "MIT",
@@ -25,20 +25,20 @@
     "generateStaticSite": "./generateStaticSite.sh"
   },
   "peerDependencies": {
-    "react": "^15.0.0 || ^16.0.0",
-    "react-dom": "^15.0.0 || ^16.0.0",
-    "react-resize-detector": "^3.4.0",
     "cornerstone-core": "^2.2.8",
     "cornerstone-math": "^0.1.8",
     "cornerstone-tools": "^3.1.0",
     "cornerstone-wado-image-loader": "^2.2.3",
     "dicom-parser": "^1.8.3",
-    "hammerjs": "^2.0.8"
+    "hammerjs": "^2.0.8",
+    "react": "^15.0.0 || ^16.0.0",
+    "react-dom": "^15.0.0 || ^16.0.0",
+    "react-resize-detector": "^3.4.0"
   },
   "devDependencies": {
     "@babel/core": "^7.2.0",
-    "@babel/plugin-external-helpers": "^7.2.0",
     "@babel/plugin-proposal-class-properties": "^7.2.1",
+    "@babel/plugin-transform-runtime": "^7.4.3",
     "@babel/preset-env": "^7.2.0",
     "@babel/preset-react": "^7.0.0",
     "@svgr/rollup": "^4.1.0",

rollup.config.js

@@ -52,8 +52,8 @@ export default {
     svgr(),
     babel({
       exclude: 'node_modules/**',
-      plugins: [ '@babel/external-helpers' ],
-      externalHelpers: true
+      plugins: [ '@babel/transform-runtime' ],
+      runtimeHelpers: true
     }),
     resolve(),
     commonjs()

yarn.lock

@@ -294,13 +294,6 @@
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.3.2.tgz#95cdeddfc3992a6ca2a1315191c1679ca32c55cd"
   integrity sha512-QzNUC2RO1gadg+fs21fi0Uu0OuGNzRKEmgCxoLNzbCdoprLwjfmZwzUrpUNfJPaVRwBpDY47A17yYEGWyRelnQ==
 
-"@babel/plugin-external-helpers@^7.2.0":
-  version "7.2.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-external-helpers/-/plugin-external-helpers-7.2.0.tgz#7f4cb7dee651cd380d2034847d914288467a6be4"
-  integrity sha512-QFmtcCShFkyAsNtdCM3lJPmRe1iB+vPZymlB4LnDIKEBj2yKQLQKtoxXxJ8ePT5fwMl4QGg303p4mB0UsSI2/g==
-  dependencies:
-    "@babel/helper-plugin-utils" "^7.0.0"
-
 "@babel/plugin-proposal-async-generator-functions@^7.2.0":
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-async-generator-functions/-/plugin-proposal-async-generator-functions-7.2.0.tgz#b289b306669dce4ad20b0252889a15768c9d417e"
@@ -694,6 +687,16 @@
     resolve "^1.8.1"
     semver "^5.5.1"
 
+"@babel/plugin-transform-runtime@^7.4.3":
+  version "7.4.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-runtime/-/plugin-transform-runtime-7.4.3.tgz#4d6691690ecdc9f5cb8c3ab170a1576c1f556371"
+  integrity sha512-7Q61bU+uEI7bCUFReT1NKn7/X6sDQsZ7wL1sJ9IYMAO7cI+eg6x9re1cEw2fCRMbbTVyoeUKWSV1M6azEfKCfg==
+  dependencies:
+    "@babel/helper-module-imports" "^7.0.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+    resolve "^1.8.1"
+    semver "^5.5.1"
+
 "@babel/plugin-transform-shorthand-properties@^7.2.0":
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/@babel/plugin-transform-shorthand-properties/-/plugin-transform-shorthand-properties-7.2.0.tgz#6333aee2f8d6ee7e28615457298934a3b46198f0"