Updated the files.

my-app/node_modules/@babel/plugin-transform-block-scoped-functions/lib/index.js

@@ -0,0 +1,43 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _helperPluginUtils = require("@babel/helper-plugin-utils");
+var _core = require("@babel/core");
+var _default = exports.default = (0, _helperPluginUtils.declare)(api => {
+  api.assertVersion(7);
+  function transformStatementList(paths) {
+    for (const path of paths) {
+      if (!path.isFunctionDeclaration()) continue;
+      const func = path.node;
+      const declar = _core.types.variableDeclaration("let", [_core.types.variableDeclarator(func.id, _core.types.toExpression(func))]);
+      declar._blockHoist = 2;
+      func.id = null;
+      path.replaceWith(declar);
+    }
+  }
+  return {
+    name: "transform-block-scoped-functions",
+    visitor: {
+      BlockStatement(path) {
+        const {
+          node,
+          parent
+        } = path;
+        if (_core.types.isFunction(parent, {
+          body: node
+        }) || _core.types.isExportDeclaration(parent)) {
+          return;
+        }
+        transformStatementList(path.get("body"));
+      },
+      SwitchCase(path) {
+        transformStatementList(path.get("consequent"));
+      }
+    }
+  };
+});
+
+//# sourceMappingURL=index.js.map