add file

node_modules/@babel/preset-env/data/built-in-modules.js

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+// TODO: Remove in Babel 8
+
+module.exports = require("@babel/compat-data/native-modules");

node_modules/@babel/preset-env/data/built-in-modules.json.js

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+// TODO: Remove in Babel 8
+
+module.exports = require("@babel/compat-data/native-modules");

node_modules/@babel/preset-env/data/built-ins.js

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+// TODO: Remove in Babel 8
+// https://github.com/vuejs/vue-cli/issues/3671
+
+module.exports = require("./corejs2-built-ins.json");

node_modules/@babel/preset-env/data/built-ins.json.js

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+// TODO: Remove in Babel 8
+// https://github.com/vuejs/vue-cli/issues/3671
+
+module.exports = require("./corejs2-built-ins.json");

node_modules/@babel/preset-env/data/corejs2-built-ins.js

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+// TODO: Remove in Babel 8
+
+module.exports = require("@babel/compat-data/corejs2-built-ins");

node_modules/@babel/preset-env/data/corejs2-built-ins.json.js

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+// TODO: Remove in Babel 8
+
+module.exports = require("@babel/compat-data/corejs2-built-ins");

node_modules/@babel/preset-env/data/plugins.js

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+// TODO: Remove in Babel 8
+
+module.exports = require("@babel/compat-data/plugins");

node_modules/@babel/preset-env/data/plugins.json.js

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+// TODO: Remove in Babel 8
+
+module.exports = require("@babel/compat-data/plugins");

node_modules/@babel/preset-env/data/shipped-proposals.js

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+/* eslint sort-keys: "error" */
+// These mappings represent the syntax proposals that have been
+// shipped by browsers, and are enabled by the `shippedProposals` option.
+
+const proposalPlugins = new Set([
+  "proposal-class-properties",
+  "proposal-numeric-separator",
+  "proposal-private-methods"
+]);
+
+// use intermediary object to enforce alphabetical key order
+const pluginSyntaxObject = {
+  "proposal-async-generator-functions": "syntax-async-generators",
+  "proposal-class-properties": "syntax-class-properties",
+  "proposal-json-strings": "syntax-json-strings",
+  "proposal-nullish-coalescing-operator": "syntax-nullish-coalescing-operator",
+  "proposal-numeric-separator": "syntax-numeric-separator",
+  "proposal-object-rest-spread": "syntax-object-rest-spread",
+  "proposal-optional-catch-binding": "syntax-optional-catch-binding",
+  "proposal-optional-chaining": "syntax-optional-chaining",
+  // note: we don't have syntax-private-methods
+  "proposal-private-methods": "syntax-class-properties",
+  "proposal-unicode-property-regex": null,
+};
+
+const pluginSyntaxEntries = Object.keys(pluginSyntaxObject).map(function (key) {
+  return [key, pluginSyntaxObject[key]];
+});
+
+const pluginSyntaxMap = new Map(pluginSyntaxEntries);
+
+module.exports = { pluginSyntaxMap, proposalPlugins };

node_modules/@babel/preset-env/data/unreleased-labels.js

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+// TODO: Remove in Babel 8
+
+module.exports = require("@babel/helper-compilation-targets").unreleasedLabels;