Print Bigints in decimal format.

runtime/vm/object_test.cc

 // 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.
 
 #include "vm/assert.h"
 #include "vm/assembler.h"
 #include "vm/bigint_operations.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
@@ skipping 339 matching lines @@
   }
 }
 
 
 TEST_CASE(Bigint) {
   Bigint& b = Bigint::Handle();
   EXPECT(b.IsNull());
   const String& test = String::Handle(String::New("1234"));
   b = Bigint::New(test);
   const char* str = b.ToCString();
-  // Currently only hex output supported.
-  EXPECT_STREQ("0x4D2", str);
+  EXPECT_STREQ("1234", str);
 
   int64_t t64 = DART_2PART_UINT64_C(1, 0);
   Bigint& big = Bigint::Handle();
   big = BigintOperations::NewFromInt64(t64);
   EXPECT_EQ(t64, big.AsInt64Value());
   big = BigintOperations::NewFromCString("10000000000000000000");
   EXPECT_EQ(1e19, big.AsDoubleValue());
 
   Bigint& big1 = Bigint::Handle(BigintOperations::NewFromCString(
       "100000000000000000000"));
@@ skipping 1578 matching lines @@
     cls = iterator.GetNextClass();
     ASSERT((cls.raw() == ae66.raw()) || (cls.raw() == re44.raw()));
     count++;
   }
   ASSERT(count == 2);
 }
 
 #endif  // TARGET_ARCH_IA32.
 
 }  // namespace dart