Compiler Error C3371

'idl_module': only the 'name' property is allowed here

idl_module usage directly on a function declaration cannot have any parameters other than name.

The following sample generates C3371:

// C3371.cpp
[idl_module(name="Name", dllname="Some.dll")];
[idl_module(name="Name", helpstring="Some help")]   // C3371
int f1();
// try
// [idl_module(name="Name")]
// int f1();

int main()
{
}