[interpreter] Switch context during stack unwinding.

src/interpreter/bytecode-generator.cc

Index: src/interpreter/bytecode-generator.cc
diff --git a/src/interpreter/bytecode-generator.cc b/src/interpreter/bytecode-generator.cc
index a153b76c9f35b7e9037a9538ffea3acff54cef68..38030cfaedf314ede0641682cd8c47dd72467d87 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -1116,6 +1116,7 @@ void BytecodeGenerator::VisitTryCatchStatement(TryCatchStatement* stmt) {
   // when the handler is entered by the stack-unwinding machinery.
   // TODO(mstarzinger): Be smarter about register allocation.
   Register context = register_allocator()->NewRegister();
+  builder()->MoveRegister(Register::current_context(), context);
 
   // Evaluate the try-block inside a control scope. This simulates a handler
   // that is intercepting 'throw' control commands.
@@ -1169,6 +1170,7 @@ void BytecodeGenerator::VisitTryFinallyStatement(TryFinallyStatement* stmt) {
   // when the handler is entered by the stack-unwinding machinery.
   // TODO(mstarzinger): Be smarter about register allocation.
   Register context = register_allocator()->NewRegister();
+  builder()->MoveRegister(Register::current_context(), context);
 
   // Evaluate the try-block inside a control scope. This simulates a handler
   // that is intercepting all control commands.