------------------------------------------------------------------------
r11866 | tharwood@adobe.com | 2009-11-16 17:01:12 -0500 (Mon, 16 Nov 2009) | 5 lines

Fix bug ASC-3827
(a) ^= 1 fell into logic that inappropriately re-used the parenthesized
expression on both sides of the assignment.  This change strips the
parentheses so that the underlying expression is exposed.

------------------------------------------------------------------------