[ACTIVITY] Report for week #15

Hello,

# TCWG Infrastructure

- Fixed problem in ABE with MinGW build of GDB's master branch. - Fixed problem in upstream GDB with MinGW build of GDB's master branch. - Analysed backlog of failed check_gdb jobs. - A couple of "misbisected" commits, including one pointing to a glibc commit. - One detected regression also noticed by Christophe, and fixed by the community. - One Arm failure that passes on QEMU TCG. - Reviewed a number of Gerrit requests about improving ABE and CI scripts.