linkers: Return a Copy of VisualStudioLinker always_args
linkers: Return a Copy of VisualStudioLinker always_args

Otherwise people will accidentally append to it.

jeandet/meson,ernestask/meson,jeandet/meson,thiblahute/meson,trhd/meson,MathieuDuponchelle/meson,pexip/meson,QuLogic/meson,jpakkane/meson,trhd/meson,QuLogic/meson,thiblahute/meson,ernestask/meson,becm/meson,mesonbuild/meson,QuLogic/meson,jpakkane/meson,jeandet/meson,thiblahute/meson,ernestask/meson,jpakkane/meson,pexip/meson,QuLogic/meson,jpakkane/meson,jpakkane/meson,MathieuDuponchelle/meson,trhd/meson,thiblahute/meson,MathieuDuponchelle/meson,becm/meson,jeandet/meson,trhd/meson,jeandet/meson,mesonbuild/meson,thiblahute/meson,pexip/meson,QuLogic/meson,ernestask/meson,jpakkane/meson,pexip/meson,MathieuDuponchelle/meson,QuLogic/meson,MathieuDuponchelle/meson,mesonbuild/meson,jpakkane/meson,becm/meson,ernestask/meson,jpakkane/meson,MathieuDuponchelle/meson,becm/meson,mesonbuild/meson,MathieuDuponchelle/meson,ernestask/meson,mesonbuild/meson,trhd/meson,jpakkane/meson,pexip/meson,becm/meson,pexip/meson,becm/meson,ernestask/meson,mesonbuild/meson,trhd/meson,ernestask/meson,becm/meson,MathieuDuponchelle/meson,jeandet/meson,trhd/meson,thiblahute/meson,thiblahute/meson,QuLogic/meson,thiblahute/meson,thiblahute/meson,pexip/meson,jeandet/meson,pexip/meson,becm/meson,trhd/meson,mesonbuild/meson,jeandet/meson,pexip/meson,becm/meson,mesonbuild/meson,QuLogic/meson,becm/meson,jeandet/meson,ernestask/meson,pexip/meson,QuLogic/meson,MathieuDuponchelle/meson,mesonbuild/meson,trhd/meson,mesonbuild/meson