PsiFileSystemItem function ( @ NotNull final FileIncludeInfo arg0 , @ NotNull final PsiFile arg1 ) { return null ; }
if all providers return null then fileincludeinfo is resolved in a standard way using filereferenceset concode_field_sep ExtensionPointName<FileIncludeProvider> EP_NAME concode_field_sep int getVersion concode_elem_sep boolean acceptFile concode_elem_sep FileIncludeInfo[] getIncludeInfos concode_elem_sep String getId concode_elem_sep void registerFileTypesUsedForIndexing