Convert COMPILE_ASSERT to static_assert

util/numeric/checked_range.h

Index: util/numeric/checked_range.h
diff --git a/util/numeric/checked_range.h b/util/numeric/checked_range.h
index b0f122278a0b0cde25233ff3e49333f0ac3f2bc1..df3e395fe2be334ae5615d86ff4eb3d2ee9b0046 100644
--- a/util/numeric/checked_range.h
+++ b/util/numeric/checked_range.h
@@ -30,8 +30,8 @@ template <typename ValueType, typename SizeType = ValueType>
 class CheckedRange {
  public:
   CheckedRange(ValueType base, SizeType size) {
-    COMPILE_ASSERT(!std::numeric_limits<SizeType>::is_signed,
-                   SizeType_must_be_unsigned);
+    static_assert(!std::numeric_limits<SizeType>::is_signed,
+                  "SizeType must be unsigned");
     SetRange(base, size);
   }