Add Smi::Zero and replace all Smi::FromInt(0) calls

src/deoptimizer.cc

Index: src/deoptimizer.cc
diff --git a/src/deoptimizer.cc b/src/deoptimizer.cc
index 971de9ec77179e616200e6fdb5e97c0c32d6ff0b..c489e701e1ce47dd9891dead803a6e0434cdb947 100644
--- a/src/deoptimizer.cc
+++ b/src/deoptimizer.cc
@@ -1024,7 +1024,7 @@ void Deoptimizer::DoComputeJSFrame(TranslatedFrame* translated_frame,
   // and will be materialized by {Runtime_NotifyDeoptimized}. For additional
   // safety we use Smi(0) instead of the potential {arguments_marker} here.
   if (is_topmost) {
-    intptr_t context_value = reinterpret_cast<intptr_t>(Smi::FromInt(0));
+    intptr_t context_value = reinterpret_cast<intptr_t>(Smi::kZero);
     Register context_reg = JavaScriptFrame::context_register();
     output_frame->SetRegister(context_reg.code(), context_value);
   }
@@ -1292,7 +1292,7 @@ void Deoptimizer::DoComputeInterpretedFrame(TranslatedFrame* translated_frame,
   // and will be materialized by {Runtime_NotifyDeoptimized}. For additional
   // safety we use Smi(0) instead of the potential {arguments_marker} here.
   if (is_topmost) {
-    intptr_t context_value = reinterpret_cast<intptr_t>(Smi::FromInt(0));
+    intptr_t context_value = reinterpret_cast<intptr_t>(Smi::kZero);
     Register context_reg = JavaScriptFrame::context_register();
     output_frame->SetRegister(context_reg.code(), context_value);
   }
@@ -1659,7 +1659,7 @@ void Deoptimizer::DoComputeConstructStubFrame(TranslatedFrame* translated_frame,
   // and will be materialized by {Runtime_NotifyDeoptimized}. For additional
   // safety we use Smi(0) instead of the potential {arguments_marker} here.
   if (is_topmost) {
-    intptr_t context_value = reinterpret_cast<intptr_t>(Smi::FromInt(0));
+    intptr_t context_value = reinterpret_cast<intptr_t>(Smi::kZero);
     Register context_reg = JavaScriptFrame::context_register();
     output_frame->SetRegister(context_reg.code(), context_value);
   }
@@ -1843,7 +1843,7 @@ void Deoptimizer::DoComputeAccessorStubFrame(TranslatedFrame* translated_frame,
   // and will be materialized by {Runtime_NotifyDeoptimized}. For additional
   // safety we use Smi(0) instead of the potential {arguments_marker} here.
   if (is_topmost) {
-    intptr_t context_value = reinterpret_cast<intptr_t>(Smi::FromInt(0));
+    intptr_t context_value = reinterpret_cast<intptr_t>(Smi::kZero);
     Register context_reg = JavaScriptFrame::context_register();
     output_frame->SetRegister(context_reg.code(), context_value);
   }