* Source/NSArray.m: Move -setValue:forKey: from NSMutableArray to NSArray. Patch by Marcian Lytwyn <marcian.lytwyn@advcsi.com>. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@37464 72102866-910b-0410-8b05-ffd578937521