Fix CVE-2016-9017:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9107
http://bugs.ghostscript.com/show_bug.cgi?id=697171

Patch copied from upstream source repository:
http://git.ghostscript.com/?p=mujs.git;a=commitdiff;h=a5c747f1d40e8d6659a37a8d25f13fb5acf8e767

From a5c747f1d40e8d6659a37a8d25f13fb5acf8e767 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor.andersson@artifex.com>
Date: Tue, 25 Oct 2016 14:08:27 +0200
Subject: [PATCH] Fix 697171: missed an operand in the bytecode debugger dump.

---
 jscompile.h | 2 +-
 jsdump.c    | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/jscompile.h b/jscompile.h
index 802cc9e..3054d13 100644
--- a/thirdparty/mujs/jscompile.h
+++ b/thirdparty/mujs/jscompile.h
@@ -21,7 +21,7 @@ enum js_OpCode
 
 	OP_NEWARRAY,
 	OP_NEWOBJECT,
-	OP_NEWREGEXP,
+	OP_NEWREGEXP,	/* -S,opts- <regexp> */
 
 	OP_UNDEF,
 	OP_NULL,
diff --git a/jsdump.c b/jsdump.c
index 1c51c29..37ad88c 100644
--- a/thirdparty/mujs/jsdump.c
+++ b/thirdparty/mujs/jsdump.c
@@ -750,6 +750,7 @@ void jsC_dumpfunction(js_State *J, js_Function *F)
 		case OP_INITVAR:
 		case OP_DEFVAR:
 		case OP_GETVAR:
+		case OP_HASVAR:
 		case OP_SETVAR:
 		case OP_DELVAR:
 		case OP_GETPROP_S:
-- 
2.10.2