[Fix #37] constructor property now properly set on instances

lib/ClassBuilder.js

@@ -388,11 +388,11 @@ exports.prototype.build = function extend( _, __ )
         prototype, prop_init, members, new_class, this._classId
     );
 
-    new_class.prototype      = prototype;
-    new_class.constructor    = new_class;
-    new_class.___$$props$$   = prop_init;
-    new_class.___$$methods$$ = members;
-    new_class.___$$sinit$$   = staticInit;
+    new_class.prototype             = prototype;
+    new_class.prototype.constructor = new_class;
+    new_class.___$$props$$          = prop_init;
+    new_class.___$$methods$$        = members;
+    new_class.___$$sinit$$          = staticInit;
 
     attachFlags( new_class, props );
 
@@ -692,6 +692,7 @@ exports.prototype.createConcreteCtor = function( cname, members )
                 )
             ;
         }
+
     };
 
     // provide a more intuitive string representation

test/test-class-constructor.js

@@ -167,3 +167,20 @@ assert.ok(
     }, TypeError, "Constructor cannot be private" );
 } )();
 
+
+/**
+ * When a constructor is instantiated, the instance's 'constructor' property is
+ * set to the constructor that was used to instantiate it. The same should be
+ * true for class instances.
+ *
+ * This will also be important for reflection.
+ */
+( function testConsructorPropertyIsProperlySetToClass()
+{
+    var Foo = Class( {} );
+
+    assert.ok( Foo().constructor === Foo,
+        "Instance constructor should be set to class"
+    );
+} )();
+