[base] Pass scalar arguments by value in CHECK/DCHECK

src/base/logging.cc

Index: src/base/logging.cc
diff --git a/src/base/logging.cc b/src/base/logging.cc
index cadcb6f1de843eae36600138c201bbf60f8866a3..c94fe9d6932c23e78d55de84ded35fa5a4cb6578 100644
--- a/src/base/logging.cc
+++ b/src/base/logging.cc
@@ -14,9 +14,8 @@ namespace v8 {
 namespace base {
 
 // Explicit instantiations for commonly used comparisons.
-#define DEFINE_MAKE_CHECK_OP_STRING(type)              \
-  template std::string* MakeCheckOpString<type, type>( \
-      type const&, type const&, char const*);
+#define DEFINE_MAKE_CHECK_OP_STRING(type) \
+  template std::string* MakeCheckOpString<type, type>(type, type, char const*);
 DEFINE_MAKE_CHECK_OP_STRING(int)
 DEFINE_MAKE_CHECK_OP_STRING(long)       // NOLINT(runtime/int)
 DEFINE_MAKE_CHECK_OP_STRING(long long)  // NOLINT(runtime/int)
@@ -29,11 +28,11 @@ DEFINE_MAKE_CHECK_OP_STRING(void const*)
 
 
 // Explicit instantiations for floating point checks.
-#define DEFINE_CHECK_OP_IMPL(NAME)                          \
-  template std::string* Check##NAME##Impl<float, float>(    \
-      float const& lhs, float const& rhs, char const* msg); \
-  template std::string* Check##NAME##Impl<double, double>(  \
-      double const& lhs, double const& rhs, char const* msg);
+#define DEFINE_CHECK_OP_IMPL(NAME)                                            \
+  template std::string* Check##NAME##Impl<float, float>(float lhs, float rhs, \
+                                                        char const* msg);     \
+  template std::string* Check##NAME##Impl<double, double>(                    \
+      double lhs, double rhs, char const* msg);
 DEFINE_CHECK_OP_IMPL(EQ)
 DEFINE_CHECK_OP_IMPL(NE)
 DEFINE_CHECK_OP_IMPL(LE)