protected void genLoadQualifier(Context ctx, Tree tree) {
protected void genLoadQualifier(Context ctx, Tree tree, boolean implicitThis) {
    protected void genLoadQualifier(Context ctx, Tree tree) {        switch (tree) {        case Ident(_):            ctx.code.emitALOAD_0();            break;        case Select(Tree qualifier, _):            genLoad(ctx, qualifier, JAVA_LANG_OBJECT_T);            break;        default:            throw global.fail("unknown qualifier");        }    }