glsl/standalone: Add the ability to generate ir_builder code

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>

src/compiler/glsl/standalone.h

@@ -33,6 +33,7 @@ struct standalone_options {
    int dump_ast;
    int dump_hir;
    int dump_lir;
+   int dump_builder;
    int do_link;
    int just_log;
 };