| Index: lib/runtime/dart/_utils.js
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| diff --git a/lib/runtime/dart/_utils.js b/lib/runtime/dart/_utils.js
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| deleted file mode 100644
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| index 3f28766107ba8a254bb4dff5ee8697b3ccfe81a3..0000000000000000000000000000000000000000
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| --- a/lib/runtime/dart/_utils.js
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| +++ /dev/null
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| @@ -1,107 +0,0 @@
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| -dart_library.library('dart/_utils', null, /* Imports */[
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| -], /* Lazy imports */[
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| -], function(exports, dart) {
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| -  'use strict';
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| -  const defineProperty = Object.defineProperty;
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| -  const getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
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| -  const getOwnPropertyNames = Object.getOwnPropertyNames;
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| -  const getOwnPropertySymbols = Object.getOwnPropertySymbols;
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| -  const hasOwnProperty = Object.prototype.hasOwnProperty;
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| -  const StrongModeError = (function() {
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| -    function StrongModeError(message) {
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| -      Error.call(this);
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| -      this.message = message;
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| -    }
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| -    ;
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| -    Object.setPrototypeOf(StrongModeError.prototype, Error.prototype);
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| -    return StrongModeError;
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| -  })();
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| -  function throwStrongModeError(message) {
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| -    throw new StrongModeError(message);
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| -  }
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| -  function throwInternalError(message) {
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| -    throw Error(message);
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| -  }
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| -  function assert(condition) {
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| -    if (!condition) throwInternalError("The compiler is broken: failed assert");
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| -  }
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| -  function getOwnNamesAndSymbols(obj) {
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| -    return getOwnPropertyNames(obj).concat(getOwnPropertySymbols(obj));
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| -  }
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| -  function safeGetOwnProperty(obj, name) {
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| -    let desc = getOwnPropertyDescriptor(obj, name);
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| -    if (desc) return desc.value;
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| -  }
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| -  function defineLazyProperty(to, name, desc) {
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| -    let init = desc.get;
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| -    let value = null;
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| -    function lazySetter(x) {
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| -      init = null;
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| -      value = x;
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| -    }
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| -    function circularInitError() {
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| -      throwInternalError('circular initialization for field ' + name);
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| -    }
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| -    function lazyGetter() {
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| -      if (init == null) return value;
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| -      let f = init;
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| -      init = circularInitError;
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| -      lazySetter(f());
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| -      return value;
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| -    }
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| -    desc.get = lazyGetter;
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| -    desc.configurable = true;
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| -    if (desc.set) desc.set = lazySetter;
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| -    return defineProperty(to, name, desc);
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| -  }
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| -  function defineLazy(to, from) {
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| -    for (let name of getOwnNamesAndSymbols(from)) {
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| -      defineLazyProperty(to, name, getOwnPropertyDescriptor(from, name));
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| -    }
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| -  }
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| -  function defineMemoizedGetter(obj, name, getter) {
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| -    return defineLazyProperty(obj, name, {get: getter});
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| -  }
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| -  function copyTheseProperties(to, from, names) {
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| -    for (let name of names) {
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| -      var desc = getOwnPropertyDescriptor(from, name);
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| -      if (desc != void 0) {
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| -        defineProperty(to, name, desc);
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| -      } else {
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| -        defineLazyProperty(to, name, () => from[name]);
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| -      }
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| -    }
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| -    return to;
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| -  }
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| -  function copyProperties(to, from) {
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| -    return copyTheseProperties(to, from, getOwnNamesAndSymbols(from));
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| -  }
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| -  function export_(to, from, show, hide) {
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| -    if (show == void 0 || show.length == 0) {
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| -      show = getOwnNamesAndSymbols(from);
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| -    }
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| -    if (hide != void 0) {
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| -      var hideMap = new Set(hide);
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| -      show = show.filter(k => !hideMap.has(k));
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| -    }
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| -    return copyTheseProperties(to, from, show);
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| -  }
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| -  // Exports:
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| -  exports.defineProperty = defineProperty;
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| -  exports.getOwnPropertyDescriptor = getOwnPropertyDescriptor;
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| -  exports.getOwnPropertyNames = getOwnPropertyNames;
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| -  exports.getOwnPropertySymbols = getOwnPropertySymbols;
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| -  exports.hasOwnProperty = hasOwnProperty;
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| -  exports.StrongModeError = StrongModeError;
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| -  exports.throwStrongModeError = throwStrongModeError;
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| -  exports.throwInternalError = throwInternalError;
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| -  exports.assert = assert;
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| -  exports.getOwnNamesAndSymbols = getOwnNamesAndSymbols;
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| -  exports.safeGetOwnProperty = safeGetOwnProperty;
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| -  exports.defineLazyProperty = defineLazyProperty;
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| -  exports.defineLazy = defineLazy;
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| -  exports.defineMemoizedGetter = defineMemoizedGetter;
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| -  exports.copyTheseProperties = copyTheseProperties;
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| -  exports.copyProperties = copyProperties;
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| -  exports.export_ = export_;
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| -});
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| 
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