[interpreter] Merge {OsrPoll} with {Jump} bytecode.

src/interpreter/control-flow-builders.h

Index: src/interpreter/control-flow-builders.h
diff --git a/src/interpreter/control-flow-builders.h b/src/interpreter/control-flow-builders.h
index 5cd9b5bc99680a9822b57121eb0c07e840d68c56..cb63363054eefac33a09f6d93fbe227ec7761a62 100644
--- a/src/interpreter/control-flow-builders.h
+++ b/src/interpreter/control-flow-builders.h
@@ -86,8 +86,7 @@ class LoopBuilder final : public BreakableControlFlowBuilder {
   ~LoopBuilder();
 
   void LoopHeader(ZoneVector<BytecodeLabel>* additional_labels);
-  void JumpToHeader();
-  void JumpToHeaderIfTrue();
+  void JumpToHeader(int loop_depth);
   void BindContinueTarget();
   void EndLoop();
 
@@ -99,9 +98,6 @@ class LoopBuilder final : public BreakableControlFlowBuilder {
   void ContinueIfUndefined() { EmitJumpIfUndefined(&continue_labels_); }
   void ContinueIfNull() { EmitJumpIfNull(&continue_labels_); }
 
-  BytecodeLabels* header_labels() { return &header_labels_; }
-  BytecodeLabels* continue_labels() { return &continue_labels_; }
-
  private:
   BytecodeLabel loop_header_;