restore globals after running tests

Dependencies

• [2] K7YGVRXH generalize the protocol to return errors, etc.
• [3] 3BRGOF7N return failing tests with every code change
• [*] LRDM35CE app running again

Change contents

• edit in live.lua at line 281
  [3.30]

  [3.30]
  + -- run all tests

  + local globals = live.shallow_copy_all_globals()
• edit in live.lua at line 285
  [3.100]

  [3.100]
  + live.restore_all_globals(globals)
• edit in live.lua at line 291
  [2.39]

  [5.8032]
  + end

  + end

  +

  + function live.shallow_copy_all_globals()

  + local result = {}

  + for k,v in pairs(_G) do

  + result[k] = v

  + end

  + return result

  + end

  +

  + function live.restore_all_globals(x)

  + -- delete extra bindings

  + for k,v in pairs(_G) do

  + if x[k] == nil then

  + _G[k] = nil

  + end

  + end

  + -- restore previous bindings

  + for k,v in pairs(x) do

  + _G[k] = v