Design Elements - V8 JavaScript Engine - Google Code: "Executing the second statement in Point (this.y = y;) creates a new property, y, in the Point object. In this case, V8:
creates another hidden class C2, based on C1, then adds information to C2 that describes the object as also having property y stored at offset 1 (one) in the Point object.
updates C1 with a class transition indicating that if a property y is added to an object described by C1 then the hidden class C2 should be used instead of C1. At this stage the Point object's hidden class is C2."
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