undectable object

Author: evilpie

spec.html

@@ -3176,7 +3176,7 @@ <h1>ToBoolean ( _argument_ )</h1>
               Object
             </td>
             <td>
-              Return *true*.
+              Return *false* if _argument_ is an undectable object otherwise return *true*.
             </td>
           </tr>
           </tbody>
@@ -4072,8 +4072,8 @@ <h1>Abstract Equality Comparison</h1>
       <emu-alg>
         1. If Type(_x_) is the same as Type(_y_), then
           1. Return the result of performing Strict Equality Comparison _x_ === _y_.
-        1. If _x_ is *null* and _y_ is *undefined*, return *true*.
-        1. If _x_ is *undefined* and _y_ is *null*, return *true*.
+        1. If _x_ is *null* or *undefined* and _y_ is *undefined* or an undectable object, return *true*.
+        1. If _x_ is *undefined* or an undectable object and _y_ is *null* or *undefined*, return *true*.
         1. If Type(_x_) is Number and Type(_y_) is String, return the result of the comparison _x_ == ToNumber(_y_).
         1. If Type(_x_) is String and Type(_y_) is Number, return the result of the comparison ToNumber(_x_) == _y_.
         1. If Type(_x_) is Boolean, return the result of the comparison ToNumber(_x_) == _y_.
@@ -12464,6 +12464,14 @@ <h1>Runtime Semantics: Evaluation</h1>
                 `"function"`
               </td>
             </tr>
+            <tr>
+              <td>
+                Object (an undetectable object)
+              </td>
+              <td>
+                `"undefined"`
+              </td>
+            </tr>
             <tr>
               <td>
                 Object (non-standard exotic and does not implement [[Call]])