[turbofan] Debug-time helpers for regalloc data structures

src/compiler/register-allocator.h

Index: src/compiler/register-allocator.h
diff --git a/src/compiler/register-allocator.h b/src/compiler/register-allocator.h
index cd3a5f6ca5b1cb7aff1b38ee9e52917f52be2622..1a4f91b1695102c13562b5d95284324216f34a5c 100644
--- a/src/compiler/register-allocator.h
+++ b/src/compiler/register-allocator.h
@@ -630,6 +630,12 @@ class RegisterAllocationData final : public ZoneObject {
   PhiMapValue* GetPhiMapValueFor(int virtual_register);
   bool IsBlockBoundary(LifetimePosition pos) const;
 
+  void Print(const InstructionSequence* instructionSequence);
+  void Print(const Instruction* instruction);
+  void Print(const LiveRange* range, bool with_children = false);
+  void Print(const InstructionOperand& op);
+  void Print(const MoveOperands* move);
+
  private:
   Zone* const allocation_zone_;
   Frame* const frame_;