[Interpreter] Generate valid FrameStates in the Bytecode Graph Builder.

src/interpreter/bytecode-array-iterator.cc

Index: src/interpreter/bytecode-array-iterator.cc
diff --git a/src/interpreter/bytecode-array-iterator.cc b/src/interpreter/bytecode-array-iterator.cc
index 352c9f725089533919101e238fc18186a916efcb..0bdd0553152975c9d73e337c885ba2c3f1815ad2 100644
--- a/src/interpreter/bytecode-array-iterator.cc
+++ b/src/interpreter/bytecode-array-iterator.cc
@@ -32,6 +32,11 @@ Bytecode BytecodeArrayIterator::current_bytecode() const {
 }
 
 
+int BytecodeArrayIterator::current_bytecode_size() const {
+  return Bytecodes::Size(current_bytecode());
+}
+
+
 uint32_t BytecodeArrayIterator::GetRawOperand(int operand_index,
                                               OperandType operand_type) const {
   DCHECK_GE(operand_index, 0);