Removes dartc reliance on its own libraries, now can be targeted at any implementation's libraries

compiler/lib/implementation/math_natives.js

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Native methods for Math.
-var native_Math_ceil = Math.ceil;
-var native_Math_floor = Math.floor;
-var native_Math_max = Math.max;
-var native_Math_min = Math.min;
-var native_Math_round = Math.round;
-
-// A valid integer-string is composed of:
-//   optional whitespace: \s*
-//   an optional sign: [+-]?
-//   either digits (at least one): \d+
-//       or a hex-literal: 0[xX][0-9abcdefABCDEF]+
-//   optional whitespace: \s*
-var math$INT_REGEXP =
-    /^\s*[+-]?(:?\d+|0[xX][0-9abcdefABCDEF]+)\s*$/;
-
-// A valid double-string is composed of:
-//   optional whitespace: \s*
-//   an optional sign: [+-]?
-//   either:
-//      digits* . digits+ exponent?
-//      digits+ exponent
-//      Infinity
-//      NaN
-//   optional whitespace: \s*
-var math$DOUBLE_REGEXP =
-    /^\s*[+-]?((\d*\.\d+([eE][+-]?\d+)?)|(\d+([eE][+-]?\d+))|Infinity|NaN)\s*$/;
-
-function native_MathNatives_parseDouble(str) {
-  if (math$INT_REGEXP.test(str) || math$DOUBLE_REGEXP.test(str)) return +str;
-  throw native_MathNatives__newBadNumberFormat(str);
-}
-
-
-
-function native_MathNatives_parseInt(str) {
-  if (math$INT_REGEXP.test(str)) return +str;
-  throw native_MathNatives__newBadNumberFormat(str);
-}
-
-function native_MathNatives_random() { return Math.random(); }
-function native_MathNatives_sin(x) { return Math.sin(x); }
-function native_MathNatives_cos(x) { return Math.cos(x); }
-function native_MathNatives_tan(x) { return Math.tan(x); }
-function native_MathNatives_asin(x) { return Math.asin(x); }
-function native_MathNatives_acos(x) { return Math.acos(x); }
-function native_MathNatives_atan(x) { return Math.atan(x); }
-function native_MathNatives_atan2(x, y) { return Math.atan2(x, y); }
-function native_MathNatives_sqrt(x) { return Math.sqrt(x); }
-function native_MathNatives_exp(x) { return Math.exp(x); }
-function native_MathNatives_log(x) { return Math.log(x); }
-function native_MathNatives_pow(x, y) { return Math.pow(x, y); }