tgsi-dump: dump label if instruction has one
tgsi-dump: dump label if instruction has one

The instruction has an associated label when Instruction.Label == 1,
as can be seen in ureg_emit_label() or tgsi_build_full_instruction().

This fixes dump generating extra :0 labels on conditionals, and virgl
parsing more than the expected tokens and eventually reaching "Illegal
command buffer" (when parsing more than a safety margin of 10 we
currently have).

Signed-off-by: Marc-André Lureau <a6f2b960a4aca61381fc650a67901b2ac8e83e6d@redhat.com>
Cc: "13.0 17.0" <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>
Signed-off-by: Dave Airlie <f2295d84e358395675bc8031be58672073ae065e@redhat.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler