nitg: use a portable macro PRINT_ERROR instead of fprintf

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
tests: fix sav for error_annot_c_compiler

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
Merge branch 'master' into portable-errors
src: use macro PRINT_ERROR for deferred method error

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
tests: fix savs for nitg-g to reorder output on stderr

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
Merge: nitg: use a portable macro PRINT_ERROR instead of fprintf

Outputs to stderr on Linux and to logcat on Android.

The macro is defined both in the C internal to the compiled Nt program and to each FFI files which are separated from the internals.

Pull-Request: #417
Reviewed-by: Alexandre Terrasa <alexandre@moz-code.org>
Reviewed-by: Jean Privat <jean@pryen.org>