lib/qx/tool/compiler/app/Application.js
function compileAllRemainingDeps(classname, deps) {
        var checked = {};
        var depNames = { };
        depNames[classname] = true;
        
        function search(classname) {
          if (checked[classname]) {
            return;
          }
          checked[classname] = true;

          var info = db.classInfo[classname];
          if (info && info.dependsOn) {
            for (var depName in info.dependsOn) {
              var dd = info.dependsOn[depName];
              if (dd.load || dd.require || dd.defer || dd.construct) {
                if (!allDeps.contains(depName)) {
                  depNames[depName] = true; 
                }
                search(depName);
              }
            }
          }
        }
        
        search(classname);
        for (var depName in depNames) {
          deps.push(depName);
        }
      }
function compileAllRemainingDeps(classname, deps) {
        var checked = {};
        var depNames = { };
        depNames[classname] = true;
        
        function search(classname) {
          if (checked[classname]) {
            return;
          }
          checked[classname] = true;

          var info = db.classInfo[classname];
          if (info && info.dependsOn) {
            for (var depName in info.dependsOn) {
              var dd = info.dependsOn[depName];
              if (dd.load || dd.require || dd.defer || dd.construct) {
                if (!allDeps.contains(depName)) {
                  depNames[depName] = true; 
                }
                search(depName);
              }
            }
          }
        }
        
        search(classname);
        for (var depName in depNames) {
          deps.push(depName);
        }
      }
/*
We could say that when a class is `.require`d, then we treat any of it's `construct:true` dependencies as `require:true`
The problem is given this example:
qx.core.Init.defer()
qx.event.Registration.addListener
qx.event.Registration.getManager
qx.event.Manager.construct
new qx.util.DeferredCall

new qx.util.DeferredCall is a runtime only dependency so is not available.

So the theory is that deferred calls tend to be about initialisation, so prioritising constructor dependencies
may be helpful
 /*
Recursively finds all the dependencies for a class which have not already been added
to the list of classes to load.

@param classname {String}
@param deps {String[]} array to modify