Irregexp: Missing initialization of field.

src/jsregexp.h

Index: src/jsregexp.h
diff --git a/src/jsregexp.h b/src/jsregexp.h
index 959edddb187890e89e9bee5e3c4074f28348debb..7f1f01f83e071bc109a8a4c8536ae795eb17a81d 100644
--- a/src/jsregexp.h
+++ b/src/jsregexp.h
@@ -1105,7 +1105,8 @@ class Trace {
    public:
     DeferredCapture(int reg, bool is_capture, Trace* trace)
         : DeferredAction(ActionNode::STORE_POSITION, reg),
-          cp_offset_(trace->cp_offset()) { }
+          cp_offset_(trace->cp_offset()),
+          is_capture_(is_capture) { }
     int cp_offset() { return cp_offset_; }
     bool is_capture() { return is_capture_; }
    private: