Adapt Random class to be able to run in javascript integer compatibility mode.

runtime/vm/intrinsifier.h

 // Copyright (c) 2012, 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.
 // Class for intrinsifying functions.
 
 #ifndef VM_INTRINSIFIER_H_
 #define VM_INTRINSIFIER_H_
 
 #include "vm/allocation.h"
 
@@ skipping 80 matching lines @@
   V(_IntegerImplementation, >=, Integer_greaterEqualThan, 1087476857)          \
   V(_IntegerImplementation, <<, Integer_shl, 1600590181)                       \
   V(_IntegerImplementation, >>, Integer_sar, 237416447)                        \
   V(_Double, toInt, Double_toInt, 630286253)
 
 
 #define MATH_LIB_INTRINSIC_LIST(V)                                             \
   V(::, sqrt, Math_sqrt, 1662640002)                                           \
   V(::, sin, Math_sin, 1273932041)                                             \
   V(::, cos, Math_cos, 1749547468)                                             \
-  V(_Random, _nextState, Random_nextState, 287494804)                          \
+  V(_Random, _nextState, Random_nextState, 776416255)                          \
 
 
 #define TYPED_DATA_LIB_INTRINSIC_LIST(V)                                       \
   V(_TypedList, get:length, TypedData_getLength, 1004567191)                   \
   V(_Int8Array, _new, TypedData_Int8Array_new, 1708300323)                     \
   V(_Uint8Array, _new, TypedData_Uint8Array_new, 280387497)                    \
   V(_Uint8ClampedArray, _new, TypedData_Uint8ClampedArray_new, 1035267417)     \
   V(_Int16Array, _new, TypedData_Int16Array_new, 1460383283)                   \
   V(_Uint16Array, _new, TypedData_Uint16Array_new, 737997883)                  \
   V(_Int32Array, _new, TypedData_Int32Array_new, 1608749233)                   \
@@ skipping 40 matching lines @@
   CORE_INTEGER_LIB_INTRINSIC_LIST(DECLARE_FUNCTION)
   MATH_LIB_INTRINSIC_LIST(DECLARE_FUNCTION)
   TYPED_DATA_LIB_INTRINSIC_LIST(DECLARE_FUNCTION)
 
 #undef DECLARE_FUNCTION
 };
 
 }  // namespace dart
 
 #endif  // VM_INTRINSIFIER_H_