spectest-progress.csv update: 426 files, 12179 passing, 8 failing

Failure summary:
    S12-enums/basic.rakudo aborted 2 test(s)
    S12-introspection/walk.t aborted 6 test(s)

docs/spectest-progress.csv

@@ -434,3 +434,8 @@
 "2009-07-28 00:00",ea667e8,12033,14,540,2248,14835,17556,423
 "2009-07-29 00:00",6999e58,12048,8,541,2253,14850,17571,423
 "2009-07-30 00:00",13ba2f3,12114,8,502,2210,14834,17583,423
+"2009-07-31 00:00",a53a1cd,12124,8,511,2210,14853,17602,424
+"2009-08-01 00:00",e02bc06,12124,8,512,2214,14858,17609,424
+"2009-08-02 00:00",e02bc06,12126,13,512,2214,14865,17616,424
+"2009-08-03 00:00",91408af,12179,8,520,2226,14933,17588,426
+"2009-08-04 00:00",18598de,12179,8,520,2226,14933,17588,426