[Interpreter] Local flow control 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..da19c855ee9d9991b15e0354f0b839d23560204a 100644
--- a/src/interpreter/bytecode-array-iterator.cc
+++ b/src/interpreter/bytecode-array-iterator.cc
@@ -20,6 +20,13 @@ void BytecodeArrayIterator::Advance() {
 }
 
 
+void BytecodeArrayIterator::AdvanceToOffset(int offset) {
+  DCHECK_GE(offset, 0);
+  DCHECK_LE(offset, bytecode_array()->length());
+  bytecode_offset_ = offset;
+}
+
+
 bool BytecodeArrayIterator::done() const {
   return bytecode_offset_ >= bytecode_array()->length();
 }