Very many testcases, some GLib tools (resource compiler, etc) and
GApplication were calling g_type_init().
Remove those uses, as they are no longer required.
https://bugzilla.gnome.org/show_bug.cgi?id=686161
==10395== 80 (24 direct, 56 indirect) bytes in 1 blocks are definitely lost in loss record 529 of 561
==10395== at 0x4005BDC: malloc (vg_replace_malloc.c:195)
==10395== by 0x4057094: g_malloc (gmem.c:134)
==10395== by 0x406F2D6: g_slice_alloc (gslice.c:836)
==10395== by 0x406F31B: g_slice_alloc0 (gslice.c:848)
==10395== by 0x403A751: g_error_new_valist (gerror.c:54)
==10395== by 0x403AAD4: g_set_error (gerror.c:240)
==10395== by 0x4230328: _g_local_file_output_stream_create (glocalfileoutputstream.c:628)
==10395== by 0x4227A04: g_local_file_create_readwrite (glocalfile.c:1388)
==10395== by 0x418974C: g_file_create_readwrite (gfile.c:1784)
==10395== by 0x8049FCD: test_g_file_create_readwrite (readwrite.c:187)
Bug #628331.
And use g_assert_[no_]error().
==2392== 49 (24 direct, 25 indirect) bytes in 1 blocks are definitely lost in loss record 451 of 573
==2392== at 0x4005BDC: malloc (vg_replace_malloc.c:195)
==2392== by 0x4057094: g_malloc (gmem.c:134)
==2392== by 0x406F2D6: g_slice_alloc (gslice.c:836)
==2392== by 0x406F31B: g_slice_alloc0 (gslice.c:848)
==2392== by 0x403A8A6: g_error_new_literal (gerror.c:117)
==2392== by 0x403AC31: g_set_error_literal (gerror.c:314)
==2392== by 0x41B7619: g_output_stream_set_pending (goutputstream.c:1198)
==2392== by 0x41B5799: g_output_stream_write (goutputstream.c:210)
==2392== by 0x41B590B: g_output_stream_write_all (goutputstream.c:268)
==2392== by 0x8049B54: verify_iostream (readwrite.c:110)
Bug #628331.
==2392== 38 (16 direct, 22 indirect) bytes in 1 blocks are definitely lost in loss record 369 of 573
==2392== at 0x4005BDC: malloc (vg_replace_malloc.c:195)
==2392== by 0x4057094: g_malloc (gmem.c:134)
==2392== by 0x406F2D6: g_slice_alloc (gslice.c:836)
==2392== by 0x406F31B: g_slice_alloc0 (gslice.c:848)
==2392== by 0x413D5BB: g_type_create_instance (gtype.c:1867)
==2392== by 0x412372A: g_object_constructor (gobject.c:1482)
==2392== by 0x4122E1D: g_object_newv (gobject.c:1266)
==2392== by 0x4122B93: g_object_new (gobject.c:1178)
==2392== by 0x4225D74: _g_local_file_new (glocalfile.c:310)
==2392== by 0x4231897: g_local_vfs_get_file_for_path (glocalvfs.c:84)
==2392== by 0x41CF91C: g_vfs_get_file_for_path (gvfs.c:94)
==2392== by 0x41911B6: g_file_new_for_path (gfile.c:5898)
==2392== by 0x804A2B9: test_g_file_replace_readwrite (readwrite.c:235)
Bug #628331.
==2392== 38 (16 direct, 22 indirect) bytes in 1 blocks are definitely lost in loss record 368 of 573
==2392== at 0x4005BDC: malloc (vg_replace_malloc.c:195)
==2392== by 0x4057094: g_malloc (gmem.c:134)
==2392== by 0x406F2D6: g_slice_alloc (gslice.c:836)
==2392== by 0x406F31B: g_slice_alloc0 (gslice.c:848)
==2392== by 0x413D5BB: g_type_create_instance (gtype.c:1867)
==2392== by 0x412372A: g_object_constructor (gobject.c:1482)
==2392== by 0x4122E1D: g_object_newv (gobject.c:1266)
==2392== by 0x4122B93: g_object_new (gobject.c:1178)
==2392== by 0x4225D74: _g_local_file_new (glocalfile.c:310)
==2392== by 0x4231897: g_local_vfs_get_file_for_path (glocalvfs.c:84)
==2392== by 0x41CF91C: g_vfs_get_file_for_path (gvfs.c:94)
==2392== by 0x41911B6: g_file_new_for_path (gfile.c:5898)
==2392== by 0x8049F23: test_g_file_create_readwrite (readwrite.c:183)
Bug #628331.
==2392== 38 (16 direct, 22 indirect) bytes in 1 blocks are definitely lost in loss record 367 of 573
==2392== at 0x4005BDC: malloc (vg_replace_malloc.c:195)
==2392== by 0x4057094: g_malloc (gmem.c:134)
==2392== by 0x406F2D6: g_slice_alloc (gslice.c:836)
==2392== by 0x406F31B: g_slice_alloc0 (gslice.c:848)
==2392== by 0x413D5BB: g_type_create_instance (gtype.c:1867)
==2392== by 0x412372A: g_object_constructor (gobject.c:1482)
==2392== by 0x4122E1D: g_object_newv (gobject.c:1266)
==2392== by 0x4122B93: g_object_new (gobject.c:1178)
==2392== by 0x4225D74: _g_local_file_new (glocalfile.c:310)
==2392== by 0x4231897: g_local_vfs_get_file_for_path (glocalvfs.c:84)
==2392== by 0x41CF91C: g_vfs_get_file_for_path (gvfs.c:94)
==2392== by 0x41911B6: g_file_new_for_path (gfile.c:5898)
==2392== by 0x8049E30: test_g_file_open_readwrite (readwrite.c:153)
Bug #628331.
Some buildd environments have an unwritable $HOME, which makes the
test that looks for an unexisting file there fail. Use $TMP instead,
which should be more reliable.
https://bugzilla.gnome.org/show_bug.cgi?id=610860
