Deprecation warning when using "in" operator with a Gee.HashMap
If you use the "in" operator to check whether a hash map contains a key, you get a deprecation warning. Example:
Gee.HashMap<string, string> map = new Gee.HashMap<string, string>();
if ("test" in map) {
print(map["test"]);
}
compiles with this warning:
../src/main.vala:3.9-3.21: warning: Gee.Map.contains is deprecated. Use Map.has_key