message: Temporarily disable TestCallStopAndContinue.test on Linux
  This is a workaround to unblock the Swift Linux builders. It's unclear
  why, but this test is sporadically failing.
  rdar://38378404
diff: # XFAIL: windows
  # -> llvm.org/pr24489
  +# REQUIRES: darwin
  +# -> Temporarily disable this test on the Swift Linux builders, due to flakiness (rdar://38378404).
  # RUN: %cxx %p/Inputs/call-function.cpp -g -o %t && %lldb -b -s %s -o continue -o "thread list" -- %t 2>&1 | FileCheck %s
  