gdb: fix gdb.gdb/unittest.exp with C++17 compiler

On a machine with gcc 11, I get:

    FAIL: gdb.gdb/unittest.exp: test_completion: tab complete "maintenance selftest string_v" (second tab) (timeout)
    FAIL: gdb.gdb/unittest.exp: test_completion: tab complete "maintenance selftest string_vie" (timeout)

That's because when compiling with C++ >= 17, we use the standard
version of string_view, and don't have a selftest for it.  So the list
of selftests shown by the tab completion when completing "string_v"
differs.

Change the test to use the copy_* tests instead.

Change-Id: I85f6aa44ee5fc9652b9bd4451e0506b89773526b

diff --git a/gdb/testsuite/gdb.gdb/unittest.exp b/gdb/testsuite/gdb.gdb/unittest.exp
index bcb4bbd2a821ae7a177c6b2a0a386ec25cb7c2ac..d25f87b7bf3ee2de3068283a3f5b9f5ecd433e4c 100644 (file)
--- a/gdb/testsuite/gdb.gdb/unittest.exp
+++ b/gdb/testsuite/gdb.gdb/unittest.exp
@@ -73,13 +73,13 @@ proc_with_prefix test_completion {} {
     clean_restart
 
     if { $self_tests_enabled } {
-       test_gdb_complete_tab_multiple "maintenance selftest string_v" "" \
-           {string_vappendf string_view string_vprintf}
-       test_gdb_complete_tab_unique "maintenance selftest string_vie" \
-           "maintenance selftest string_view" " "
+       test_gdb_complete_tab_multiple "maintenance selftest copy" "_" \
+           {copy_bitwise copy_integer_to_size}
+       test_gdb_complete_tab_unique "maintenance selftest copy_bit" \
+           "maintenance selftest copy_bitwise" " "
     } else {
-       test_gdb_complete_tab_none "maintenance selftest string_v"
-       test_gdb_complete_tab_none "maintenance selftest string_vie"
+       test_gdb_complete_tab_none "maintenance selftest copy_"
+       test_gdb_complete_tab_none "maintenance selftest copy_bit"
     }
     test_gdb_complete_tab_unique "maintenance selftest -ver" "maintenance selftest -verbose" " "
     test_gdb_complete_tab_none "maintenance selftest name_that_does_not_exist"