Function runAwaitTest

Tests/Libraries/Await/AwaitTest.cpp:3962–3962

        SC_TEST_EXPECT(allocator.failedAllocationSize() == 0);

        SC_TEST_EXPECT(await.spawn(task));
        SC_TEST_EXPECT(await.run());
        SC_TEST_EXPECT(task.result());
        SC_TEST_EXPECT(async.close());