[Bug c++/51545] missing -Wparentheses diagnostic with compound assignment used as condition

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51545

--- Comment #2 from Mikael Pettersson <mikpe at it dot uu.se> 2011-12-15 
12:09:21 UTC ---
Or perhaps PR50012?  Parenthesized expressions get TREE_NO_WARNING set on them.