Add an interface for retrieving the value of unsigned 64-bit integers.

runtime/vm/bigint_operations_test.cc

Index: runtime/vm/bigint_operations_test.cc
diff --git a/runtime/vm/bigint_operations_test.cc b/runtime/vm/bigint_operations_test.cc
index f536bbca7786be0f98be6ab59ac98847d83af178..d658688cef96c003291fa52945b6d0a07c23d591 100644
--- a/runtime/vm/bigint_operations_test.cc
+++ b/runtime/vm/bigint_operations_test.cc
@@ -100,32 +100,32 @@ TEST_CASE(BigintInt64) {
 }
 
 
-TEST_CASE(BigintUInt64) {
+TEST_CASE(BigintUint64) {
   const uint64_t kMax =
       static_cast<uint64_t>(DART_2PART_UINT64_C(0xFFFFFFFF, FFFFFFFF));
 
-  const Bigint& one = Bigint::Handle(BigintOperations::NewFromUInt64(1));
+  const Bigint& one = Bigint::Handle(BigintOperations::NewFromUint64(1));
   EXPECT(BigintOperations::FitsIntoInt64(one));
-  EXPECT(BigintOperations::FitsIntoUInt64(one));
+  EXPECT(BigintOperations::FitsIntoUint64(one));
 
-  Bigint& big = Bigint::Handle(BigintOperations::NewFromUInt64(kMax));
+  Bigint& big = Bigint::Handle(BigintOperations::NewFromUint64(kMax));
   EXPECT(!BigintOperations::FitsIntoInt64(big));
-  EXPECT(BigintOperations::FitsIntoUInt64(big));
+  EXPECT(BigintOperations::FitsIntoUint64(big));
 
-  uint64_t back = BigintOperations::ToUInt64(big);
+  uint64_t back = BigintOperations::ToUint64(big);
   EXPECT_EQ(kMax, back);
 
   big = BigintOperations::Add(big, one);
   EXPECT(!BigintOperations::FitsIntoInt64(big));
-  EXPECT(!BigintOperations::FitsIntoUInt64(big));
+  EXPECT(!BigintOperations::FitsIntoUint64(big));
 
   big = BigintOperations::Subtract(big, one);
   EXPECT(!BigintOperations::FitsIntoInt64(big));
-  EXPECT(BigintOperations::FitsIntoUInt64(big));
+  EXPECT(BigintOperations::FitsIntoUint64(big));
 
   big = BigintOperations::ShiftRight(big, 1);
   EXPECT(BigintOperations::FitsIntoInt64(big));
-  EXPECT(BigintOperations::FitsIntoUInt64(big));
+  EXPECT(BigintOperations::FitsIntoUint64(big));
 }