[glib] (8 commits) ...Merge branch 'fix_more_warnings' into 'master'

[Sebastian Dröge <sdroege src gnome org>]

Summary of changes:

  3951ccf... Fix signedness warning in tests/thread-test.c
  951105f... Fix several signedness warnings in tests/threadpool-test.c
  53157f3... Fix several signedness warnings in tests/unicode-encoding.c
  00a1515... Fix signedness warning in tests/memchunks.c
  e3453f3... Fix missing initializer in gio/tests/fake-service-name.c
  83d46f6... Fix missing field initializer in glib/deprecated/gthread.h
  9656e60... Fix cast to smaller integer type warning in glib/gscanner.c
  0c259e9... Merge branch 'fix_more_warnings' into 'master'