@babel/preset-env: `DEBUG` option

Using targets:
{
  "android": "61",
  "chrome": "61",
  "edge": "16",
  "firefox": "60",
  "ios": "10.3",
  "opera": "48",
  "safari": "10.1",
  "samsung": "8.2"
}

Using modules transform: auto

Using plugins:
  proposal-nullish-coalescing-operator { "android":"61", "chrome":"61", "edge":"16", "firefox":"60", "ios":"10.3", "opera":"48", "safari":"10.1", "samsung":"8.2" }
  proposal-optional-chaining { "android":"61", "chrome":"61", "edge":"16", "firefox":"60", "ios":"10.3", "opera":"48", "safari":"10.1", "samsung":"8.2" }
  proposal-json-strings { "android":"61", "chrome":"61", "edge":"16", "firefox":"60", "ios":"10.3", "opera":"48", "safari":"10.1", "samsung":"8.2" }
  proposal-optional-catch-binding { "android":"61", "chrome":"61", "edge":"16", "ios":"10.3", "opera":"48", "safari":"10.1", "samsung":"8.2" }
  transform-parameters { "edge":"16" }
  proposal-async-generator-functions { "android":"61", "chrome":"61", "edge":"16", "ios":"10.3", "opera":"48", "safari":"10.1" }
  proposal-object-rest-spread { "edge":"16", "ios":"10.3", "safari":"10.1" }
  transform-dotall-regex { "android":"61", "chrome":"61", "edge":"16", "firefox":"60", "ios":"10.3", "opera":"48", "safari":"10.1" }
  proposal-unicode-property-regex { "android":"61", "chrome":"61", "edge":"16", "firefox":"60", "ios":"10.3", "opera":"48", "safari":"10.1", "samsung":"8.2" }
  transform-named-capturing-groups-regex { "android":"61", "chrome":"61", "edge":"16", "firefox":"60", "ios":"10.3", "opera":"48", "safari":"10.1", "samsung":"8.2" }
  transform-async-to-generator { "ios":"10.3", "safari":"10.1" }
  transform-template-literals { "ios":"10.3", "safari":"10.1" }
  transform-function-name { "edge":"16" }
  transform-unicode-regex { "ios":"10.3", "safari":"10.1" }
  transform-block-scoping { "ios":"10.3", "safari":"10.1" }
  transform-modules-commonjs { "android":"61", "chrome":"61", "edge":"16", "firefox":"60", "ios":"10.3", "opera":"48", "safari":"10.1", "samsung":"8.2" }
  proposal-dynamic-import { "android":"61", "chrome":"61", "edge":"16", "firefox":"60", "ios":"10.3", "opera":"48", "safari":"10.1", "samsung":"8.2" }

Using polyfills: No polyfills were added, since the `useBuiltIns` option was not set.