Updated the files.

my-app/node_modules/babel-plugin-polyfill-corejs2/lib/helpers.js

@@ -0,0 +1,32 @@
+"use strict";
+
+exports.__esModule = true;
+exports.hasMinVersion = hasMinVersion;
+var _semver = _interopRequireDefault(require("semver"));
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function hasMinVersion(minVersion, runtimeVersion) {
+  // If the range is unavailable, we're running the script during Babel's
+  // build process, and we want to assume that all versions are satisfied so
+  // that the built output will include all definitions.
+  if (!runtimeVersion || !minVersion) return true;
+
+  // semver.intersects() has some surprising behavior with comparing ranges
+  // with preprelease versions. We add '^' to ensure that we are always
+  // comparing ranges with ranges, which sidesteps this logic.
+  // For example:
+  //
+  //   semver.intersects(`<7.0.1`, "7.0.0-beta.0") // false - surprising
+  //   semver.intersects(`<7.0.1`, "^7.0.0-beta.0") // true - expected
+  //
+  // This is because the first falls back to
+  //
+  //   semver.satisfies("7.0.0-beta.0", `<7.0.1`) // false - surprising
+  //
+  // and this fails because a prerelease version can only satisfy a range
+  // if it is a prerelease within the same major/minor/patch range.
+  //
+  // Note: If this is found to have issues, please also revist the logic in
+  // babel-core's availableHelper() API.
+  if (_semver.default.valid(runtimeVersion)) runtimeVersion = `^${runtimeVersion}`;
+  return !_semver.default.intersects(`<${minVersion}`, runtimeVersion) && !_semver.default.intersects(`>=8.0.0`, runtimeVersion);
+}