[interpreter] Support on-stack replacement in profiler.

src/interpreter/interpreter.h

Index: src/interpreter/interpreter.h
diff --git a/src/interpreter/interpreter.h b/src/interpreter/interpreter.h
index 48940d267fbf1b5f93ba232403728ee017b98ec8..bd9413bd422e6545eb892046ca8c3822a474e444 100644
--- a/src/interpreter/interpreter.h
+++ b/src/interpreter/interpreter.h
@@ -65,6 +65,9 @@ class Interpreter {
     return reinterpret_cast<Address>(bytecode_dispatch_counters_table_.get());
   }
 
+  // TODO(ignition): Tune code size multiplier.
+  static const int kCodeSizeMultiplier = 32;
+
  private:
 // Bytecode handler generator functions.
 #define DECLARE_BYTECODE_HANDLER_GENERATOR(Name, ...) \