intel/brw: Print W/UW immediates correctly

We were printing 24w as 0x180018d which not only scarily shows the
wrong type, but also the replicated format of the word.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28971>

src/intel/compiler/brw_fs.cpp

@@ -2599,10 +2599,14 @@ fs_visitor::dump_instruction_to_file(const fs_inst *inst, FILE *file) const
             fprintf(file, "%fdf", inst->src[i].df);
             break;
          case BRW_TYPE_W:
+            fprintf(file, "%dw", (int)(int16_t)inst->src[i].d);
+            break;
          case BRW_TYPE_D:
             fprintf(file, "%dd", inst->src[i].d);
             break;
          case BRW_TYPE_UW:
+            fprintf(file, "%duw", inst->src[i].ud & 0xffff);
+            break;
          case BRW_TYPE_UD:
             fprintf(file, "%uu", inst->src[i].ud);
             break;