@babel/preset-env: `DEBUG` option

Using targets:
{
  "ie": "6"
}

Using modules transform: auto

Using plugins:
  proposal-class-static-block { ie }
  proposal-private-property-in-object { ie }
  proposal-class-properties { ie }
  proposal-private-methods { ie }
  proposal-numeric-separator { ie }
  proposal-logical-assignment-operators { ie }
  proposal-nullish-coalescing-operator { ie }
  proposal-optional-chaining { ie }
  proposal-json-strings { ie }
  proposal-optional-catch-binding { ie }
  transform-parameters { ie }
  proposal-async-generator-functions { ie }
  proposal-object-rest-spread { ie }
  transform-dotall-regex { ie }
  proposal-unicode-property-regex { ie }
  transform-named-capturing-groups-regex { ie }
  transform-async-to-generator { ie }
  transform-exponentiation-operator { ie }
  transform-template-literals { ie }
  transform-literals { ie }
  transform-function-name { ie }
  transform-arrow-functions { ie }
  transform-block-scoped-functions { ie < 11 }
  transform-classes { ie }
  transform-object-super { ie }
  transform-shorthand-properties { ie }
  transform-duplicate-keys { ie }
  transform-computed-properties { ie }
  transform-for-of { ie }
  transform-sticky-regex { ie }
  transform-unicode-escapes { ie }
  transform-unicode-regex { ie }
  transform-spread { ie }
  transform-destructuring { ie }
  transform-block-scoping { ie }
  transform-typeof-symbol { ie }
  transform-new-target { ie }
  transform-regenerator { ie }
  transform-member-expression-literals { ie < 9 }
  transform-property-literals { ie < 9 }
  transform-reserved-words { ie < 9 }
  proposal-export-namespace-from { ie }
  transform-modules-commonjs
  proposal-dynamic-import
  syntax-import-assertions
corejs3: `DEBUG` option

Using targets: {
  "ie": "6"
}

Using polyfills with `entry-global` method:

[<CWD>/packages/babel-preset-env/test/fixtures/debug-babel-7/entry-corejs3-web/input.mjs]
The corejs3 polyfill entry has been replaced with the following polyfills:
  web.dom-collections.for-each { "ie":"6" }
  web.dom-collections.iterator { "ie":"6" }
  web.immediate { "ie":"6" }
  web.queue-microtask { "ie":"6" }
  web.timers { "ie":"6" }
  web.url { "ie":"6" }
  web.url.to-json { "ie":"6" }
  web.url-search-params { "ie":"6" }
