Allocate exact space for objspace_each_objects #4547
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We are only iterating over the eden heap so `heap_eden->total_pages` contains the exact number of pages we need to allocate for. `heap_allocated_pages` may contain pages in the tomb.
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We are only iterating over the eden heap so
heap_eden->total_pagescontains the exact number of pages we need to allocate for.heap_allocated_pagesmay contain pages in the tomb.