Vendor import of lldb release_80 branch r364487:

https://llvm.org/svn/llvm-project/lldb/branches/release_80@364487

lit/Driver/TestConvenienceVariables.test

@@ -1,3 +1,4 @@
+REQUIRES: python
 RUN: %build %p/Inputs/hello.cpp -o %t
 RUN: %lldb %t -s %p/Inputs/convenience.in -o quit | FileCheck %s
 
@@ -19,4 +20,4 @@ CHECK: 8
 CHECK: script lldb.frame.GetLineEntry().GetFileSpec().GetFilename()
 CHECK: hello.c
 CHECK: script lldb.frame.GetFunctionName()
-CHECK: main
+CHECK: main

lit/lit.cfg.py

@@ -73,3 +73,6 @@ def calculate_arch_features(arch_string):
     if os.path.isdir(cachedir):
         print("Deleting module cache at %s."%cachedir)
         shutil.rmtree(cachedir)
+
+if not config.lldb_disable_python:
+    config.available_features.add('python')