Use C++ style type casts.

test/cctest/test-heap.cc

Index: test/cctest/test-heap.cc
diff --git a/test/cctest/test-heap.cc b/test/cctest/test-heap.cc
index adab79bdbafda9d0f68889ae79729e597f3d57a2..4ca1a68f4bfa9a83c4806538a0a4a678cf09b336 100644
--- a/test/cctest/test-heap.cc
+++ b/test/cctest/test-heap.cc
@@ -164,6 +164,13 @@ TEST(HeapObjects) {
   CHECK_EQ(static_cast<double>(static_cast<uint32_t>(Smi::kMaxValue) + 1),
            value->Number());
 
+  maybe_value = HEAP->NumberFromUint32(static_cast<uint32_t>(1) << 31);
+  value = maybe_value->ToObjectChecked();
+  CHECK(value->IsHeapNumber());
+  CHECK(value->IsNumber());
+  CHECK_EQ(static_cast<double>(static_cast<uint32_t>(1) << 31),
+           value->Number());
+
   // nan oddball checks
   CHECK(HEAP->nan_value()->IsNumber());
   CHECK(isnan(HEAP->nan_value()->Number()));