anchor.diff:  :usage
   echo Set up for individual test execution, with SuperPMI collection.
   echo.
  -echo Usage: collect_runtest.cmd ^<path to runtest.cmd^>
  +echo Usage: collect_runtest.cmd ^<path to runtest.cmd^> [optional args]
   echo.
   echo We can't set the SuperPMI collection variables before runtest.cmd executes,
   echo because it runs other managed apps, including desktop apps, that are also
  
positive.code: set COMPlus_AltJit=
  set COMPlus_AltJitName=
  
  call %runtestscript% testEnv %testenvfile%
  
  del /f /q %testenvfile%
  
negative.code: :start
  if "%1"=="" echo ERROR: missing argument.&goto usage
  
  set runtestscript=%*
  
  set testenvfile=%TEMP%\superpmitestenv_%RANDOM%.cmd
  
  