Fix CopyBytes to accept size_t for num_bytes

src/deoptimizer.cc

Index: src/deoptimizer.cc
diff --git a/src/deoptimizer.cc b/src/deoptimizer.cc
index ef0d9e58094f084bbed7a4f5cec6fc64e236a0a4..601faf723d6cf15cbd51dceb930cc61d750dcaeb 100644
--- a/src/deoptimizer.cc
+++ b/src/deoptimizer.cc
@@ -2183,7 +2183,8 @@ void Deoptimizer::EnsureCodeForDeoptimizationEntry(Isolate* isolate,
   ASSERT(static_cast<int>(Deoptimizer::GetMaxDeoptTableSize()) >=
          desc.instr_size);
   chunk->CommitArea(desc.instr_size);
-  CopyBytes(chunk->area_start(), desc.buffer, desc.instr_size);
+  CopyBytes(chunk->area_start(), desc.buffer,
+      static_cast<size_t>(desc.instr_size));
   CPU::FlushICache(chunk->area_start(), desc.instr_size);
 
   if (type == EAGER) {