nested except statements

src/main/java/de/tla2b/analysis/TypeChecker.java

src/main/java/de/tla2b/types/TupleOrFunction.java

src/main/java/de/tla2b/types/TupleType.java

src/main/java/de/tla2bAst/BAstCreator.java

src/test/java/de/tla2b/expression/ComplexExpressionTest.java

src/test/java/de/tla2b/prettyprintb/ExceptTest.java

src/test/java/de/tla2b/prettyprintb/TupleTest.java

src/test/java/de/tla2b/typechecking/TupleTest.java

src/test/java/de/tla2b/typechecking/TupleVsSequenceTest.java

src/test/resources/regression/Club/Club.prob