[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 542b505be7e70e25e4331d78c2bd9920761ff4c1..cbd3ec7c1a41b1102b8730b880d2639b45f52323 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);