Fix try-finally for dead AST-branches in TurboFan.

src/compiler/control-builders.h

Index: src/compiler/control-builders.h
diff --git a/src/compiler/control-builders.h b/src/compiler/control-builders.h
index d190f61f5dc2b480b2910fbebc1bb97c6e261577..656b94a9e48e362d1020b1c34289a9fe0aa0f994 100644
--- a/src/compiler/control-builders.h
+++ b/src/compiler/control-builders.h
@@ -32,6 +32,7 @@ class ControlBuilder {
   Zone* zone() const { return builder_->local_zone(); }
   Environment* environment() { return builder_->environment(); }
   void set_environment(Environment* env) { builder_->set_environment(env); }
+  Node* the_hole() const { return builder_->jsgraph()->TheHoleConstant(); }
 
   Builder* builder_;
 };