static TypeInfo getFixedType(Library typeSystem, Collection<TypeInfo> bounds) {
var filteredBounds = new HashSet<TypeInfo>(bounds);
foreach (var ti in bounds) {
foreach (var tj in bounds) {
if (!BytecodeHelper.hasImplicitConversion(ti, tj)) {
filteredBounds.remove(tj);
}
}
}
if (filteredBounds.size() != 1) {
return null;
} else {
var result = filteredBounds.single();
if (result == null) {
return typeSystem.ObjectType;
} else {
return result;
}
}
}