New AS3 Deobfuscation method similar to that for AS1/2

libsrc/ffdec_lib/src/com/jpexs/decompiler/graph/ScopeStack.java

@@ -16,15 +16,17 @@
  */
 package com.jpexs.decompiler.graph;
 
-import java.util.Stack;
-
 /**
  *
  * @author JPEXS
  */
 public class ScopeStack extends TranslateStack {
 
+    public ScopeStack(boolean allowEmpty) {
+        super(allowEmpty ? "scope" : null);
+    }
+
     public ScopeStack() {
-        super("scope");
+        this(true);
     }
 }

libsrc/ffdec_lib/src/com/jpexs/decompiler/graph/model/FalseItem.java

@@ -65,4 +65,14 @@ public class FalseItem extends GraphTargetItem implements LogicalOpItem, SimpleV
         return true;
     }
 
+    @Override
+    public boolean isCompileTime() {
+        return true;
+    }
+
+    @Override
+    public Object getResult() {
+        return Boolean.FALSE;
+    }
+
 }

libsrc/ffdec_lib/src/com/jpexs/decompiler/graph/model/TrueItem.java

@@ -65,4 +65,15 @@ public class TrueItem extends GraphTargetItem implements LogicalOpItem, SimpleVa
     public boolean isSimpleValue() {
         return true;
     }
+
+    @Override
+    public boolean isCompileTime() {
+        return true;
+    }
+
+    @Override
+    public Object getResult() {
+        return Boolean.TRUE;
+    }
+
 }