Fix missing tagging of stack value in finally block.

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index 246fe2a13f2a9a8b4f8de9b624070ef37b46b1ff..55b37b45df7c9144a97de9ccb1381ff861bbe2d9 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -4545,6 +4545,7 @@ void FullCodeGenerator::EnterFinallyBlock() {
       ExternalReference::address_of_has_pending_message(isolate());
   __ li(at, Operand(has_pending_message));
   __ lw(a1, MemOperand(at));
+  __ SmiTag(a1);
   __ push(a1);
 
   ExternalReference pending_message_script =
@@ -4565,6 +4566,7 @@ void FullCodeGenerator::ExitFinallyBlock() {
   __ sw(a1, MemOperand(at));
 
   __ pop(a1);
+  __ SmiUntag(a1);
   ExternalReference has_pending_message =
       ExternalReference::address_of_has_pending_message(isolate());
   __ li(at, Operand(has_pending_message));