Slightly different Ada RTS build verify_ssa error

[Richard Kenner]

The latest checkins seem to have fixed a few things, but I now get this error
message, which looks slightly different from what I got before:

../../xgcc -B../../ -c -g -O2      -W -Wall -gnatpg  g-regexp.adb -o g-regexp.o
g-regexp.adb: In function 'GNAT.REGEXP.COMPILE.CREATE_PRIMARY_TABLE.CREATE_SIMPLE':
g-regexp.adb:521: error: Missing definition
for SSA_NAME: k.111D.2244_174
in statement:
#   C.108D.2240_273 = V_MAY_DEF <C.108D.2240_515>;
#   TMT.393D.3787_272 = V_MAY_DEF <TMT.393D.3787_491>;
#   TMT.394D.3788_271 = V_MAY_DEF <TMT.394D.3788_398>;
#   TMT.395D.3789_270 = V_MAY_DEF <TMT.395D.3789_540>;
#   TMT.396D.3790_269 = V_MAY_DEF <TMT.396D.3790_120>;
#   TMT.397D.3791_268 = V_MAY_DEF <TMT.397D.3791_504>;
#   TMT.398D.3792_264 = V_MAY_DEF <TMT.398D.3792_321>;
#   VUSE <D.2548_277>;
*D.2546_175 = gnat__regexp__set (D.2548, D.2545_170, k.111D.2244_174, D.2211_173);

Note that the first line shows how to reproduce this.