| Index: runtime/lib/math_patch.dart
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| diff --git a/runtime/lib/math_patch.dart b/runtime/lib/math_patch.dart
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| index ef443e614e16c1b9628f5c80c2644e92828f96b2..93275607a801be23bed396a1f3ed7cab62627839 100644
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| --- a/runtime/lib/math_patch.dart
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| +++ b/runtime/lib/math_patch.dart
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| @@ -47,7 +47,7 @@ class _Random implements Random {
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|  
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|    int nextInt(int max) {
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|      if (max <= 0 || max > _POW2_32) {
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| -      throw new IllegalArgumentException("max must be positive and < 2^32:"
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| +      throw new ArgumentError("max must be positive and < 2^32:"
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|                                           " $max");
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|      }
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|      if ((max & -max) == max) {
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| 
 |