[turbofan] Make context deoptmizable

src/runtime/runtime-compiler.cc

Index: src/runtime/runtime-compiler.cc
diff --git a/src/runtime/runtime-compiler.cc b/src/runtime/runtime-compiler.cc
index be866ad935f2224e2032b760d35a91b46e2ddda3..15a3a14156f138e2c87349bcf2eeaea84db76f43 100644
--- a/src/runtime/runtime-compiler.cc
+++ b/src/runtime/runtime-compiler.cc
@@ -151,6 +151,11 @@ RUNTIME_FUNCTION(Runtime_NotifyDeoptimized) {
   RUNTIME_ASSERT(frame->function()->IsJSFunction());
   DCHECK(frame->function() == *function);
 
+  // Ensure the context register is updated for materialized objects.
+  JavaScriptFrameIterator top_it(isolate);
+  JavaScriptFrame* top_frame = top_it.frame();
+  isolate->set_context(Context::cast(top_frame->context()));
+
   if (type == Deoptimizer::LAZY) {
     return isolate->heap()->undefined_value();
   }