ci.freebsd.org's FreeBSD-head-amd64-gcc broken by -r335338 and/or -r335339 (-r335389 still broken)

From https://ci.freebsd.org/job/FreeBSD-head-amd64-gcc/6190/consoleText
and https://ci.freebsd.org/job/FreeBSD-head-amd64-gcc/6213/ as examples:

--- ixl_pf_qmgr.o ---
In file included from /workspace/src/sys/dev/ixl/ixl_pf_qmgr.h:36:0,
                 from /workspace/src/sys/dev/ixl/ixl_pf_qmgr.c:36:
/workspace/src/sys/dev/ixl/ixl_pf.h:339:6: error: redundant redeclaration of 'ixl_set_queue_rx_itr' [-Werror=redundant-decls]
 void ixl_set_queue_rx_itr(struct ixl_rx_queue *);
      ^~~~~~~~~~~~~~~~~~~~
In file included from /workspace/src/sys/dev/ixl/ixl_pf.h:39:0,
                 from /workspace/src/sys/dev/ixl/ixl_pf_qmgr.h:36,
                 from /workspace/src/sys/dev/ixl/ixl_pf_qmgr.c:36:
/workspace/src/sys/dev/ixl/ixl.h:545:8: note: previous declaration of 'ixl_set_queue_rx_itr' was here
 void   ixl_set_queue_rx_itr(struct ixl_rx_queue *que);
        ^~~~~~~~~~~~~~~~~~~~
In file included from /workspace/src/sys/dev/ixl/ixl_pf_qmgr.h:36:0,
                 from /workspace/src/sys/dev/ixl/ixl_pf_qmgr.c:36:
/workspace/src/sys/dev/ixl/ixl_pf.h:404:5: error: redundant redeclaration of 'ixl_max_aq_speed_to_value' [-Werror=redundant-decls]
 u64 ixl_max_aq_speed_to_value(u8);
     ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /workspace/src/sys/dev/ixl/ixl_pf.h:39:0,
                 from /workspace/src/sys/dev/ixl/ixl_pf_qmgr.h:36,
                 from /workspace/src/sys/dev/ixl/ixl_pf_qmgr.c:36:
/workspace/src/sys/dev/ixl/ixl.h:549:6: note: previous declaration of 'ixl_max_aq_speed_to_value' was here
 u64  ixl_max_aq_speed_to_value(u8);
      ^~~~~~~~~~~~~~~~~~~~~~~~~


and:


--- all_subdir_ixl ---
In file included from /workspace/src/sys/dev/ixl/ixl_pf_main.c:36:0:
/workspace/src/sys/dev/ixl/ixl_pf.h:339:6: error: redundant redeclaration of 'ixl_set_queue_rx_itr' [-Werror=redundant-decls]
 void ixl_set_queue_rx_itr(struct ixl_rx_queue *);
      ^~~~~~~~~~~~~~~~~~~~
In file included from /workspace/src/sys/dev/ixl/ixl_pf.h:39:0,
                 from /workspace/src/sys/dev/ixl/ixl_pf_main.c:36:
/workspace/src/sys/dev/ixl/ixl.h:545:8: note: previous declaration of 'ixl_set_queue_rx_itr' was here
 void   ixl_set_queue_rx_itr(struct ixl_rx_queue *que);
        ^~~~~~~~~~~~~~~~~~~~
In file included from /workspace/src/sys/dev/ixl/ixl_pf_main.c:36:0:
/workspace/src/sys/dev/ixl/ixl_pf.h:404:5: error: redundant redeclaration of 'ixl_max_aq_speed_to_value' [-Werror=redundant-decls]
 u64 ixl_max_aq_speed_to_value(u8);
     ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /workspace/src/sys/dev/ixl/ixl_pf.h:39:0,
                 from /workspace/src/sys/dev/ixl/ixl_pf_main.c:36:
/workspace/src/sys/dev/ixl/ixl.h:549:6: note: previous declaration of 'ixl_max_aq_speed_to_value' was here
 u64  ixl_max_aq_speed_to_value(u8);
      ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /workspace/src/sys/dev/ixl/ixl_pf_main.c:39:0:
/workspace/src/sys/dev/ixl/ixl_pf_iov.h:60:7: error: redundant redeclaration of 'ixl_handle_vflr' [-Werror=redundant-decls]
 void  ixl_handle_vflr(void *arg, int pending);
       ^~~~~~~~~~~~~~~
In file included from /workspace/src/sys/dev/ixl/ixl_pf_main.c:36:0:
/workspace/src/sys/dev/ixl/ixl_pf.h:405:6: note: previous declaration of 'ixl_handle_vflr' was here
 void ixl_handle_vflr(void *, int);
      ^~~~~~~~~~~~~~~


===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)