Index: lldb/lit/Breakpoint/case-sensitive.test
===================================================================
--- lldb/lit/Breakpoint/case-sensitive.test
+++ lldb/lit/Breakpoint/case-sensitive.test
@@ -1,4 +1,4 @@
-# REQUIRES: nowindows
+# UNSUPPORTED: windows
 #
 # RUN: %build %p/Inputs/case-sensitive.c --nodefaultlib -o %t
 # RUN: lldb-test breakpoints %t %s | FileCheck %s
Index: lldb/lit/lit.cfg.py
===================================================================
--- lldb/lit/lit.cfg.py
+++ lldb/lit/lit.cfg.py
@@ -96,3 +96,7 @@
                 config.available_features.add('native-cpu-%s' % x)
         else:
             lit_config.warning("lit-cpuid failed: %s" % err)
+
+# Allow distinguishing Windows host from others.
+if sys.platform.startswith('win') or sys.platform.startswith('cygwin'):
+    config.available_features.add('windows')