[turbofan] Implement tail calls with differing stack parameter counts

src/compiler/instruction.h

Index: src/compiler/instruction.h
diff --git a/src/compiler/instruction.h b/src/compiler/instruction.h
index a87ef7dc9c469f865919aeef34a79fbaacb5e033..672c6d112a7cad830c68640992a5f0221acdff57 100644
--- a/src/compiler/instruction.h
+++ b/src/compiler/instruction.h
@@ -1032,7 +1032,7 @@ class InstructionSequence final : public ZoneObject {
   static void ComputeAssemblyOrder(InstructionBlocks* blocks);
 
   InstructionSequence(Isolate* isolate, Zone* zone,
-                      InstructionBlocks* instruction_blocks);
+                      InstructionBlocks* instruction_blocks, Frame* frame);
 
   int NextVirtualRegister();
   int VirtualRegisterCount() const { return next_virtual_register_; }
@@ -1173,6 +1173,8 @@ class InstructionSequence final : public ZoneObject {
     return false;
   }
 
+  Frame* frame() const { return frame_; }
+
  private:
   friend std::ostream& operator<<(std::ostream& os,
                                   const PrintableInstructionSequence& code);
@@ -1182,6 +1184,7 @@ class InstructionSequence final : public ZoneObject {
   Isolate* isolate_;
   Zone* const zone_;
   InstructionBlocks* const instruction_blocks_;
+  Frame* frame_;
   SourcePositionMap source_positions_;
   IntVector block_starts_;
   ConstantMap constants_;
@@ -1202,6 +1205,15 @@ struct PrintableInstructionSequence {
 };
 
 
+enum TailCallOpcode {
+  kPopAndStore,
+  kStore,
+  kReplaceReturn,
+  kDeconstructFrame,
+  kParametersReady
+};
+
+
 std::ostream& operator<<(std::ostream& os,
                          const PrintableInstructionSequence& code);