* expr.h (FUNCTION_ARG_PARTIAL_NREGS): Default to 0.
(FUNCTION_ARG_PASS_BY_REFERENCE): Likewise.
(FUNCTION_ARG_CALLEE_COPIES): Likewise.
* calls.c: Remove ifdefs of macros above.
* functions.c: Likewise.
* expr.c: Likewise.

From-SVN: r84300