public static class Program
	{
		static async Task Main(string[] args)
		{
			Directory.CreateDirectory("/tmp");
			await File.WriteAllTextAsync("/tmp/test.txt", "test");
			await File.ReadAllBytesAsync("/tmp/test.txt");
		}
	}

Uncaught (in promise) RuntimeError: null function or function signature mismatch
    at corlib_System_IO_File_WriteToFileAsync_string_System_IO_FileMode_string_System_Text_Encoding_System_Threading_CancellationToken (dotnet.native.wasm:0x381c5)
    at corlib_System_IO_File_WriteAllTextAsync_string_string_System_Text_Encoding_System_Threading_CancellationToken (dotnet.native.wasm:0x38048)
    at corlib_System_IO_File_WriteAllTextAsync_string_string_System_Threading_CancellationToken (dotnet.native.wasm:0x37f5b)
    at BugProfiledAOT20220620_Uno_Wasm_Sample_Program__Maind__0_MoveNext (dotnet.native.wasm:0xcd20)
    at corlib_System_Runtime_CompilerServices_AsyncMethodBuilderCore_Start_TStateMachine_REF_TStateMachine_REF_ (dotnet.native.wasm:0x2c689)
    at corlib_System_Runtime_CompilerServices_AsyncTaskMethodBuilder_Start_TStateMachine_REF_TStateMachine_REF_ (dotnet.native.wasm:0x2c8c0)
    at BugProfiledAOT20220620_Uno_Wasm_Sample_Program_Main_string__ (dotnet.native.wasm:0xca67)
    at aot_instances_aot_wrapper_gsharedvt_out_sig_obj_obj (dotnet.native.wasm:0x65f6d)
    at jit_call_cb (dotnet.native.wasm:0x913e8)
    at c7cbb3c6:0x56