i965/fs: rename lower_d2x to lower_conversions

v2:
- Change the name to lower_conversions.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

src/intel/compiler/brw_fs.h

@@ -161,7 +161,7 @@ public:
    void lower_uniform_pull_constant_loads();
    bool lower_load_payload();
    bool lower_pack();
-   bool lower_d2x();
+   bool lower_conversions();
    bool lower_logical_sends();
    bool lower_integer_multiplication();
    bool lower_minmax();