do_subproject: InvalidCode is always an error
do_subproject: InvalidCode is always an error

Not need to catch exceptions in dependency_fallback(), it's already
handled in do_subproject(). This ensure subproject errors are handled
the same way when doing dependency() fallback and when doing
subproject().

mesonbuild/meson,becm/meson,QuLogic/meson,pexip/meson,pexip/meson,mesonbuild/meson,QuLogic/meson,jpakkane/meson,pexip/meson,becm/meson,QuLogic/meson,QuLogic/meson,jpakkane/meson,pexip/meson,pexip/meson,jpakkane/meson,becm/meson,pexip/meson,becm/meson,jpakkane/meson,becm/meson,pexip/meson,jpakkane/meson,mesonbuild/meson,QuLogic/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,becm/meson,QuLogic/meson,jpakkane/meson,pexip/meson,QuLogic/meson,becm/meson,mesonbuild/meson,becm/meson,QuLogic/meson,QuLogic/meson,becm/meson,jpakkane/meson,mesonbuild/meson,mesonbuild/meson,pexip/meson,becm/meson,jpakkane/meson