improve the parsing loop for the module keyword

Change-Id: I0931ae0edfb45c5d4c67f545a1a5e513c8210e88

idl/source/prj/parser.cxx

@@ -55,18 +55,12 @@ bool SvIdlParser::ReadSvIdl( SvIdlDataBase& rBase, SvTokenStream & rInStm, bool
             bOk = false;
     }
 
-    sal_uInt32 nBeginPos = 0xFFFFFFFF; // can not happen with Tell
-
-    while( bOk && nBeginPos != rInStm.Tell() )
+    while( bOk )
     {
-        nBeginPos = rInStm.Tell();
         pTok = &rInStm.GetToken();
         if( pTok->IsEof() )
             return true;
-        if( pTok->IsEmpty() )
-            bOk = false;
 
-        // only one import at the very beginning
         if( pTok->Is( SvHash_module() ) )
         {
             tools::SvRef<SvMetaModule> aModule = new SvMetaModule( bImported );