[arcmt] For:

[arcmt] For:

id x = ...
@try {
 ...
} @finally {
 [x release];
}

Migrator will drop the release. It's better to change it to "x = 0" in a @finally to avoid leak when exception is thrown.

rdar://9398256

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135301 91177308-0d34-0410-b5e6-96231b3b80d8