Trait codegen doesn't like Document in collections

[kubukoz]

Tested against 1.49.0.

Example 1:

@trait()
list documents {
    member: Document
}

public static DocumentsTrait fromNode(Node node) {
    Builder builder = builder();
    node.expectArrayNode()
        .getElements().stream()
        .map(n -> ) //error here
        .forEach(builder::addValues);
    return builder.build();
}

Example 2:

@trait()
map documents {
    key: String
    value: Document
}

public static DocumentsTrait fromNode(Node node) {
    Builder builder = builder();
    node.expectObjectNode().getMembers().forEach((k, v) -> {
        builder.putValues(k.expectStringNode().getValue(), ); //error here
    });
    return builder.build();
}