packet-amqp.c: Temporary/preliminary fix for Bug #10582 (crash)

This is a temporary/preliminary fix to prevent the buildbot fuzz-test
 failures seen when testing the capture file attached to Bug #10582.

As noted in the bug, a complete fix will require some reworking of
  the amqp dissector.

Change-Id: I2571f1eeb46a7eede04b8d809e87b95f1ff529df
Reviewed-on: https://code.wireshark.org/review/4835
Reviewed-by: Bill Meier <wmeier@newsguy.com>

epan/dissectors/packet-amqp.c

@@ -54,10 +54,20 @@ static guint amqp_port = 5672;
 
 /*  Generic defines  */
 
+#if 0
 #define AMQP_INCREMENT(offset, addend, bound) {\
     offset += (addend);\
     THROW_ON((offset > bound), ReportedBoundsError);  \
 }
+#else /* --> (temporary until in-progress code review completed; See Bug #10582) */
+#define AMQP_INCREMENT(offset, addend, bound) {\
+        THROW_ON( \
+            (((unsigned)(offset) + (unsigned)(addend)) < (unsigned)(offset)) || \
+            (((unsigned)(offset) + (unsigned)(addend)) > (unsigned)(bound )) \
+            , ReportedBoundsError);  \
+    offset += (addend); \
+}
+#endif
 
 /*
  * This dissector handles AMQP 0-9, 0-10 and 1.0. The conversation structure