Major Description
Ruta: problem with feature expressions of ambiguous types including complete namespaces, alias and variables:
TYPESYSTEM TS1;// defines ts1.Token
TYPESYSTEM TS2;// defined ts2.Token
IMPORT ts1.Token FROM TS1 AS T1;
DECLARE Target;
TYPE T = ts1.Token;
// these rules do not work:
(ts1.Token{REGEXP(ts1.Token.pos.value, "X.*")}){-> MARK(Target)};
(T{REGEXP(T.pos.value, "X.*")}){-> MARK(Target)};
(T1{REGEXP(T1.pos.value, "X.*")}){-> MARK(Target)};