Retrieves an enumerator of compilands that have line numbers referencing this file.
HRESULT get_compilands ( 
   IDiaEnumSymbols** ppRetVal
);
Parameters
- ppRetVal
[out] Returns an IDiaEnumSymbols object that contains a list of all compilands that have line numbers referencing this file. 
Return Value
If successful, returns S_OK; otherwise, returns an error code.