Merge from GCC 4.8 branch revision 200985.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gccgo@200986 138bc75d-0d04-0410-961f-82ee72b054a4
Merge from GCC 4.8 branch revision 201223.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gccgo@201224 138bc75d-0d04-0410-961f-82ee72b054a4
Merge from GCC 4.8 branch revision 201227.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gccgo@201228 138bc75d-0d04-0410-961f-82ee72b054a4