Move OS::MemCopy and OS::MemMove out of platform to utils

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index dc091f3a9cd888da651d4d9e100745cc7e3ae538..775e2529d8e0f0e3c87aa1853d2df09002ef29c0 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -14912,7 +14912,7 @@ TEST(PreCompileSerialization) {
   // Serialize.
   const v8::ScriptCompiler::CachedData* cd = source.GetCachedData();
   char* serialized_data = i::NewArray<char>(cd->length);
-  i::OS::MemCopy(serialized_data, cd->data, cd->length);
+  i::MemCopy(serialized_data, cd->data, cd->length);
 
   // Deserialize.
   i::ScriptData* deserialized = i::ScriptData::New(serialized_data, cd->length);
@@ -18092,14 +18092,14 @@ TEST(ExternalInternalizedStringCollectedAtGC) {
 
 static double DoubleFromBits(uint64_t value) {
   double target;
-  i::OS::MemCopy(&target, &value, sizeof(target));
+  i::MemCopy(&target, &value, sizeof(target));
   return target;
 }
 
 
 static uint64_t DoubleToBits(double value) {
   uint64_t target;
-  i::OS::MemCopy(&target, &value, sizeof(target));
+  i::MemCopy(&target, &value, sizeof(target));
   return target;
 }