* exp_dbug.ads: Update documentation to reflect simpler encoding for
protected operations.
* exp_ch9.adb (Build_Selected_Name): Do not include "PT" suffix in
generated name, it complicates decoding in gdb and hinders debugging
of protected operations.
(Build_Barrier_Function_Specification): Set the Needs_Debug_Info
flag for the protected entry barrier function.
(Build_Protected_Entry_Specification): Set the Needs_Debug_Info
flag for the protected entry function.
From-SVN: r90907
