* sem_attr.adb: Add processing for Standard'Compiler_Version
2009-05-06 Arnaud Charlet <charlet@adacore.com>
* exp_ch5.adb, exp_util.adb, exp_attr.adb, sem_util.adb, sem_res.adb,
targparm.adb, targparm.ads, exp_ch4.adb, exp_ch6.adb, exp_disp.adb,
opt.ads, exp_aggr.adb, exp_intr.adb, sem_disp.adb, exp_ch3.adb
(Tagged_Type_Expansion): New flag.
Replace use of VM_Target related to tagged types expansion by
Tagged_Type_Expansion, since tagged type expansion is not necessarily
linked to VM targets.