[gdb/testsuite] Fix gdb.python/tui-window.exp for remote host

When running gdb.python/tui-window.exp with host board
local-remote-host-notty and target board native-gdbserver, I get:
...
UNSUPPORTED: gdb.python/tui-window.exp: TUI not supported
FAIL: gdb.python/tui-window.exp: test title
...

Fix this by adding the missing return after the unsupported.

Tested on x86_64-linux.

diff --git a/gdb/testsuite/gdb.python/tui-window.exp b/gdb/testsuite/gdb.python/tui-window.exp
index af2a866e78ba857f69e07abd8f67397243e86963..9b5d17c35d4baaded3deb59577c957e4bf1dce39 100644 (file)
--- a/gdb/testsuite/gdb.python/tui-window.exp
+++ b/gdb/testsuite/gdb.python/tui-window.exp
@@ -40,6 +40,7 @@ gdb_test_no_output "tui new-layout fail fail 1 status 0 cmd 1"
 
 if {![Term::enter_tui]} {
     unsupported "TUI not supported"
+    return
 }
 
 Term::command "layout test"