Cross entry references failing in repl translation

[tjpalmer]

This shouldn't fail to find A:

$ class A {}
interactive#0: A__0
$ class B { public a: A = new A() }
interactive#1: B__0
$ translate(1, "java")
1: class B { public a: A = new A() }
                       ⇧
[interactive#1:1+20-21]: interactive#0 does not export symbol A__0
Translated java for interactive#1
  interactive/
    src/
      main/
        java/
          interactive/
            i0001/
              B.java: text/x-java-source
                package interactive.i0001;
                final class B {
                    public final A a;
                    public B() {
                        A t_15 = new A();
                        this.a = t_15;
                    }
                    public A getA() {
                        return this.a;
                    }
                }
              I0001Main.java: text/x-java-source
                package interactive.i0001;
                import temper.core.Core;
                import static interactive.i0001.I0001Global.export;
                public final class I0001Main {
                    private I0001Main() {
                    }
                    public static void main(String[] args) {
                        Core.initSimpleLogging();
                        Core.doNothing(export);
                        Core.waitUntilTasksComplete();
                    }
                }
              I0001Global.java: text/x-java-source
                package interactive.i0001;
                public final class I0001Global {
                    private I0001Global() {
                    }
                    public static Class export;
                    static {
                        export = return__13;
                    }
                }
              I0001Main.java.map: application/json
                { "version": 3, "file": "java/interactiv⋯,SAAiC,CAAA,AAAjC,MAAiC;AAAA;AAAA;AAAA" }
              I0001Global.java.map: application/json
                { "version": 3, "file": "java/interactiv⋯BAAA;AAAjC;AAAiC,iBAAAA,UAAA;AAAA;AAAA" }
              B.java.map: application/json
                { "version": 3, "file": "java/interactiv⋯,WAAAF,CAAA;AAAA,oBAAAC,CAAA;AAAA;AAAA" }
interactive#2: void

We should fix that. And then I was also planning to look into masking if there were different A definitions in the history. See this discussion on that. It would be good to test that at the same time as looking into the issue above.