Clean up gdb.c++ tests for dwarf 1

[Elena Zannoni]

Michael Elizabeth Chastain writes:
 > gdb HEAD%20030205 has loads of this stuff in the C++ test suite:
 > 
 >   setup_xfail_format "DWARF 1"
 > 
 > There are 81 instances of this.
 > 
 > Some test scripts have them, and some don't.  I'd like to get rid
 > of them and replace them with something more coherent -- or nothing.
 > 
 > I see four choices.
 > 
 > (1) Just remove these calls to setup_xfail_format.  If someone runs the
 >     gdb test suite with DWARF 1, the test suite will do its job and give
 >     FAIL results for all the C++ tests that do not work with DWARF 1.
 > 
 > (2) Change the tests so that each C++ test script reports a single
 >     UNSUPPORTED for the whole script (if the debug format is DWARF 1).
 >     
 >     This requires about five lines of code per script.  This cannot be
 >     centralized in 'skip_cplus_tests', because the check for the debug
 >     format has to happen after the test script has compiled the test
 >     program, started gdb, and proceeded to main, so that 'info source'
 >     works.
 > 
 > (3) Leave the mess alone.
 > 
 > (4) Start fixing the DWARF 1 support.  I'll start testing DWARF 1 and
 >     filing bug reports for the things that don't work.
 > 
 > My preference order is (1) - (2) - (3) - (4).
 > 
 > What do you think?
 > 
 > Michael C


My preferences are (1) (1) (1) (1) (1) (1).....

elena