[gdb/testsuite] Require allow_xml_test in gdb.base/gcore.exp

I build gdb without xml support, and with test-case gdb.base/gcore.exp ran
into:
...
(gdb) core $outputs/gdb.base/gcore/gcore.test
warning: Can not parse XML target description; \
  XML support was disabled at compile time
  ...
(gdb) FAIL: $exp: corefile restored general registers
...

Fix this by requiring allow_xml_test.

diff --git a/gdb/testsuite/gdb.base/gcore.exp b/gdb/testsuite/gdb.base/gcore.exp
index 243e0b39082bb5720a628ebaa1a60e678bc5d6f1..5937137f4ee261a8d69bbb60e1bd82238bc9d53f 100644 (file)
--- a/gdb/testsuite/gdb.base/gcore.exp
+++ b/gdb/testsuite/gdb.base/gcore.exp
@@ -17,6 +17,7 @@
 # This is a test for the gdb command "generate-core-file".
 
 require gcore_cmd_available
+require allow_xml_test
 
 standard_testfile