trompeloeil: Exception thrown exit

Using

• trompeloeil v25
• catch
• Mac OS 10.12.6
• apple-clang 8.1

Tests crash with:

libc++abi.dylib: terminating with uncaught exception of type std::__1::system_error: recursive_mutex lock failed: Invalid argument

in trompeloeil.hpp line 3224:

template <typename Sig>
  struct expectations
  {
    ~expectations() {
      active.decommission();
      saturated.decommission();
    }                                    # line 3224   
    call_matcher_list<Sig> active;
    call_matcher_list<Sig> saturated;
  };

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