[lldb] [lit] Driver/TestConvenienceVariables.test requires Python

lldb/lit/Driver/TestConvenienceVariables.test

+REQUIRES: python
 RUN: %build %p/Inputs/hello.cpp -o %t
 RUN: %lldb %t -s %p/Inputs/convenience.in -o quit | FileCheck %s
 
 script print(lldb.debugger)
 
 CHECK: stop reason = breakpoint 1.1
 CHECK: Debugger (instance: {{.*}}, id: {{[0-9]+}})
 CHECK: script print(lldb.target)
 CHECK: TestConvenienceVariables.test
 CHECK: script print(lldb.process)
 CHECK: SBProcess: pid = {{[0-9]+}},
 CHECK-SAME:       state = stopped,
 CHECK-SAME:       threads = {{[0-9]+}},
 CHECK-SAME:       executable = TestConvenienceVariables.test
 CHECK: script print(lldb.thread.GetStopDescription(100))
 CHECK: breakpoint 1.1
 CHECK: script lldb.frame.GetLineEntry().GetLine()
 CHECK: 8
 CHECK: script lldb.frame.GetLineEntry().GetFileSpec().GetFilename()
 CHECK: hello.c
 CHECK: script lldb.frame.GetFunctionName()
-CHECK: main
+CHECK: main
 

lldb/lit/lit.cfg.py

if cpuid_exe is None:
         lit_config.warning("lit-cpuid not found, tests requiring CPU extensions will be skipped")
     else:
         out, err, exitcode = lit.util.executeCommand([cpuid_exe])
         if exitcode == 0:
             for x in out.split():
                 config.available_features.add('native-cpu-%s' % x)
         else:
             lit_config.warning("lit-cpuid failed: %s" % err)
+
+if not config.lldb_disable_python:
+    config.available_features.add('python')