Assign this.thunk to null instead of deleting it

[no-longer-on-githu-b]

When you use delete on a property, V8 will demote the object to a hash table instead of the original compact sequence of words. Setting the property to null will keep the compact representation.

• https://groups.google.com/forum/#!topic/v8-users/zE4cOHBkAnY
• https://www.youtube.com/watch?v=YPkPYqoinU8

[paf31]

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