Make FrameStates recursive (to be used for inlining).

src/compiler/ast-graph-builder.cc

Index: src/compiler/ast-graph-builder.cc
diff --git a/src/compiler/ast-graph-builder.cc b/src/compiler/ast-graph-builder.cc
index 9ec91e53324e91fb48dedf9115d6027d26399bc7..2e4b4fa67d400bcf0eae1fc8458ce1472bd078c9 100644
--- a/src/compiler/ast-graph-builder.cc
+++ b/src/compiler/ast-graph-builder.cc
@@ -217,7 +217,7 @@ void AstGraphBuilder::Environment::UpdateStateValues(Node** state_values,
 }
 
 
-Node* AstGraphBuilder::Environment::Checkpoint(BailoutId ast_id) {
+Node* AstGraphBuilder::Environment::Checkpoint(BailoutId ast_id, Node* parent) {
   UpdateStateValues(&parameters_node_, 0, parameters_count());
   UpdateStateValues(&locals_node_, parameters_count(), locals_count());
   UpdateStateValues(&stack_node_, parameters_count() + locals_count(),
@@ -225,7 +225,8 @@ Node* AstGraphBuilder::Environment::Checkpoint(BailoutId ast_id) {
 
   Operator* op = common()->FrameState(ast_id);
 
-  return graph()->NewNode(op, parameters_node_, locals_node_, stack_node_);
+  return graph()->NewNode(op, parameters_node_, locals_node_, stack_node_,
+                          parent);
 }
 
 
@@ -2009,7 +2010,8 @@ void AstGraphBuilder::PrepareFrameState(Node* node, BailoutId ast_id,
 
     DCHECK(node->InputAt(frame_state_index)->op()->opcode() == IrOpcode::kDead);
 
-    Node* frame_state_node = environment()->Checkpoint(ast_id);
+    Node* frame_state_node =
+        environment()->Checkpoint(ast_id, jsgraph()->UndefinedConstant());
     node->ReplaceInput(frame_state_index, frame_state_node);
   }
 
@@ -2032,7 +2034,8 @@ void AstGraphBuilder::PrepareFrameState(Node* node, BailoutId ast_id,
     // TODO(jarin) If ast_id.IsNone(), perhaps we should generate an empty
     // deopt block and make sure there is no patch entry for this (so
     // that the deoptimizer dies when trying to deoptimize here).
-    Node* state_node = environment()->Checkpoint(ast_id);
+    Node* state_node =
+        environment()->Checkpoint(ast_id, jsgraph()->UndefinedConstant());
     Node* deoptimize_node = NewNode(common()->Deoptimize(), state_node);
     UpdateControlDependencyToLeaveFunction(deoptimize_node);