message: test(c-api) Don't pass `NULL` for zero args/results to `wasm_func_call`!
  We must pass an empty array.
diff: @@ -117,7 +117,11 @@ int main(int argc, const char* argv[]) {
  // Call.
  printf("Calling export...\n");
  printf("Evaluating \"%s\"\n", js_string);
  - if (wasm_func_call(run_func, NULL, NULL)) {
  +
  + wasm_val_vec_t args = WASM_EMPTY_VEC;
  + wasm_val_vec_t res = WASM_EMPTY_VEC;
  +
  + if (wasm_func_call(run_func, &args, &res)) {
  printf("> Error calling function!\n");
  return 1;
  }
  @@ -134,12 +138,7 @@ int main(int argc, const char* argv[]) {
  printf("\n");
  wasm_extern_vec_delete(&exports);
  -
  - // NEEDS REVIEW:
  - for(int i = 0; i < num_imports; ++i) {
  - wasm_extern_delete(imports[i]);
  - }
  - free(imports);
  + wasm_extern_vec_delete(&imports);
  // Shut down.
  printf("Shutting down...\n");
  