[gdb/testsuite] Kfail gdb.cp/ambiguous.exp FAILs for PR26602

Kfail these FAILs as caused by PR exp/26602:
...
FAIL: gdb.cp/ambiguous.exp: print x.x
FAIL: gdb.cp/ambiguous.exp: print n.x
FAIL: gdb.cp/ambiguous.exp: print j.x
FAIL: gdb.cp/ambiguous.exp: print jva1.x
FAIL: gdb.cp/ambiguous.exp: print jva2.x
FAIL: gdb.cp/ambiguous.exp: print (A1)j
FAIL: gdb.cp/ambiguous.exp: print (A1)jva1
...

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2020-09-11  Tom de Vries  <tdevries@suse.de>

	PR exp/26602
	* gdb.cp/ambiguous.exp: Add KFAILs for PR26602.

2 files changed, 12 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 227b952..6b2055d 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-09-11  Tom de Vries  <tdevries@suse.de>
+
+	PR exp/26602
+	* gdb.cp/ambiguous.exp: Add KFAILs for PR26602.
+
 2020-09-11  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>
 
 	* gdb.base/bp-cmds-execution-x-script.exp: Remove a stale comment.
diff --git a/gdb/testsuite/gdb.cp/ambiguous.exp b/gdb/testsuite/gdb.cp/ambiguous.exp
index 17fb29f..4d01c10 100644
--- a/gdb/testsuite/gdb.cp/ambiguous.exp
+++ b/gdb/testsuite/gdb.cp/ambiguous.exp
@@ -74,6 +74,7 @@ send_gdb "break marker1\n" ; gdb_expect -re ".*$gdb_prompt $"
 # right times. 
 
 # X is derived from A1 and A2; both A1 and A2 have a member 'x'
+setup_kfail gdb/26602 *-*-*
 send_gdb "print x.x\n"
 gdb_expect {
    -re "warning: x ambiguous; using X::A2::x. Use a cast to disambiguate.\r\n\\$\[0-9\]* = \[-\]*\[0-9\]*\r\n$gdb_prompt $" {
@@ -89,6 +90,7 @@ gdb_expect {
 
 # N is derived from A1 and A2, but not immediately -- two steps
 # up in the hierarchy. Both A1 and A2 have a member 'x'.
+setup_kfail gdb/26602 *-*-*
 send_gdb "print n.x\n"
 gdb_expect {
    -re "warning: x ambiguous; using N::M::A2::x. Use a cast to disambiguate.\r\n\\$\[0-9\]* = \[-\]*\[0-9\]*\r\n$gdb_prompt $" {
@@ -102,6 +104,7 @@ gdb_expect {
 }
 
 # J is derived from A1 twice.  A1 has a member x. 
+setup_kfail gdb/26602 *-*-*
 send_gdb "print j.x\n"
 gdb_expect {
    -re "warning: x ambiguous; using J::L::A1::x. Use a cast to disambiguate.\r\n\\$\[0-9\]* = \[-\]*\[0-9\]*\r\n$gdb_prompt $" {
@@ -129,6 +132,7 @@ gdb_expect {
 # JVA1 is derived from A1; A1 occurs as a virtual base in two
 # ancestors, and as a non-virtual immediate base. Ambiguity must
 # be reported. 
+setup_kfail gdb/26602 *-*-*
 send_gdb "print jva1.x\n"
 gdb_expect {
    -re "warning: x ambiguous; using JVA1::A1::x. Use a cast to disambiguate.\r\n\\$\[0-9\]* = \[-\]*\[0-9\]*\r\n$gdb_prompt $" {
@@ -144,6 +148,7 @@ gdb_expect {
 # JVA2 is derived from A1 & A2; A1 occurs as a virtual base in two
 # ancestors, and A2 is a non-virtual immediate base. Ambiguity must
 # be reported as A1 and A2 both have a member 'x'.
+setup_kfail gdb/26602 *-*-*
 send_gdb "print jva2.x\n"
 gdb_expect {
    -re "warning: x ambiguous; using JVA2::A2::x. Use a cast to disambiguate.\r\n\\$\[0-9\]* = \[-\]*\[0-9\]*\r\n$gdb_prompt $" {
@@ -173,6 +178,7 @@ gdb_expect {
 
 # J is derived from A1 twice; report ambiguity if a J is
 # cast to an A1.
+setup_kfail gdb/26602 *-*-*
 send_gdb "print (A1)j\n"
 gdb_expect {
    -re "warning: A1 ambiguous; using J::L::A1. Use a cast to disambiguate.\r\n\\$\[0-9\]* = \{x = \[-\]*\[0-9\]*, y = \[-\]*\[0-9\]*\}\r\n$gdb_prompt $" {
@@ -199,6 +205,7 @@ gdb_expect {
 
 # JVA1 is derived from A1; A1 is a virtual base and also a
 # non-virtual base.  Must report ambiguity if a JVA1 is cast to an A1.
+setup_kfail gdb/26602 *-*-*
 send_gdb "print (A1)jva1\n"
 gdb_expect {
    -re "warning: A1 ambiguous; using JVA1::A1. Use a cast to disambiguate.\r\n\\$\[0-9\]* = \{x = \[-\]*\[0-9\]*, y = \[-\]*\[0-9\]*\}\r\n$gdb_prompt $" {