Add a TypeBuilder API for copying a heap type #6828
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@kripken, I remember you suggested this recently. Do you remember where? |
Given a function that maps the old child heap types to new child heap types, the new API takes care of copying the rest of the structure of a given heap type into a TypeBuilder slot. Use the new API in GlobalTypeRewriter::rebuildTypes. It will also be used in an upcoming type optimization. This refactoring also required adding the ability to clear the supertype of a TypeBuilder slot, which was previously not possible.
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Given a function that maps the old child heap types to new child heap
types, the new API takes care of copying the rest of the structure of a
given heap type into a TypeBuilder slot.
Use the new API in GlobalTypeRewriter::rebuildTypes. It will also be
used in an upcoming type optimization. This refactoring also required
adding the ability to clear the supertype of a TypeBuilder slot, which
was previously not possible.