version constant interpolation in module descriptor

Mentioned here by @FroMage, it would be nice to be able to do stuff like this:

module my.example "1.0.0" {
    value javaVersion = "8";
    value ceylonVersion = "1.3.3-SNAPSHOT";

    import java.base javaVersion;

    import javafx.base javaVersion;
    import javafx.graphics javaVersion;
    import javafx.controls javaVersion;

    import ceylon.collection ceylonVersion;
    import ceylon.file ceylonVersion;
}

[gavinking]

Well, anyway, this is done now, closing this issue.

[FroMage]

Very cool!