tests: Add a (known failing) Dictionary weak key test

[torokati44]

I salvaged this from #10069.

Seems like the other half of that didn't ever land. I tried to rebase the implementation too, but things look so much different now, that I haven't managed to do it.

[torokati44]

How much do we care about the AS source not being easily accessible without proprietary tools? Not much, given that ffdec (JPEXS Free Flash Decompiler) exists...?

[torokati44]

The AS in the SWF decompiles to this in JPEXS:

package test_fla
{
   import adobe.utils.*;
   import flash.accessibility.*;
   import flash.desktop.*;
   import flash.display.*;
   import flash.errors.*;
   import flash.events.*;
   import flash.external.*;
   import flash.filters.*;
   import flash.geom.*;
   import flash.globalization.*;
   import flash.media.*;
   import flash.net.*;
   import flash.net.drm.*;
   import flash.printing.*;
   import flash.profiler.*;
   import flash.sampler.*;
   import flash.sensors.*;
   import flash.system.*;
   import flash.text.*;
   import flash.text.engine.*;
   import flash.text.ime.*;
   import flash.ui.*;
   import flash.utils.*;
   import flash.xml.*;
   
   public dynamic class MainTimeline extends MovieClip
   {
       
      
      public var d:*;
      
      public var count:*;
      
      public var value:*;
      
      public var i:*;
      
      public var o:*;
      
      public function MainTimeline()
      {
         super();
         addFrameScript(0,this.frame1,1,this.frame2,2,this.frame3,3,this.frame4);
      }
      
      internal function frame1() : *
      {
         this.d = new Dictionary(true);
         this.obj1 = {};
         this.obj2 = {};
         this.obj3 = {};
         this.obj4 = {};
         this.obj5 = {};
         this.d[this.obj1] = 0;
         this.d[this.obj2] = 1;
         this.d[this.obj3] = 2;
         this.d[this.obj4] = 3;
         this.d[this.obj5] = 4;
         this.counter = 0;
         this.d = this.d;
      }
      
      internal function frame2() : *
      {
         this.count = 0;
         for each(this.value in this.d)
         {
            ++this.count;
         }
         trace(this.count);
         if(this.counter)
         {
            return;
         }
         this.obj1 = null;
         this.obj3 = null;
         this.obj5 = null;
      }
      
      internal function frame3() : *
      {
         if(this.counter >= 20)
         {
            this.counter = 0;
            gotoAndStop(2);
            return;
         }
         for(this.i = 0; this.i <= 300; ++this.i)
         {
            this.o = new Object();
         }
         ++this.counter;
      }
      
      internal function frame4() : *
      {
         gotoAndPlay(3);
      }
   }
}

I guess it's straightforward enough...

[JL2210]

I tried rebasing the implementation before I commented on that issue but had the same issues as you probably did. I don't know how Ruffle (or Rust, for that matter) works well enough to implement it from scratch.

[Dinnerbone]

How much do we care about the AS source not being easily accessible without proprietary tools? Not much, given that ffdec (JPEXS Free Flash Decompiler) exists...?

Nice to have, not critical if the (actual-)source isn't available. Sometimes it's not due to the swf being crafted by hand (usually via ffdec)