Re-add atomic wait test

(To be refined)

Author: cwoffenden

test/webaudio/audioworklet_emscripten_locks.cpp

@@ -14,10 +14,16 @@
 
 // Todo: add/find a way to verify atomic wait fails?
 
+// In system/lib/pthread/emscripten_thread_state.S
+extern "C" int _emscripten_thread_supports_atomics_wait(void);
+
 emscripten_lock_t testLock = EMSCRIPTEN_LOCK_T_STATIC_INITIALIZER;
 int testSuccess = 0;
 
 bool ProcessAudio(int numInputs, const AudioSampleFrame *inputs, int numOutputs, AudioSampleFrame *outputs, int numParams, const AudioParamFrame *params, void *userData) {
+  int supportsAtomicWait = _emscripten_thread_supports_atomics_wait();
+  printf("supportsAtomicWait: %d\n", supportsAtomicWait);
+  assert(!supportsAtomicWait);
   //emscripten_futex_wake(&futexLocation, 1);
   printf("%f\n", emscripten_get_now());