G1RemSetSummary.hpp uses FREE_C_HEAP_ARRAY which would require (a non-existent) inclusion of memory/allocation.inline.hpp.

As per coding guidelines we are not allowed to include .inline.hpp files in hpp files. Interestingly, at the moment this compiles fine, but causes issues with refactoring.

The solution is to move the FREE_C_HEAP_ARRAY call into the cpp file and include allocation.inline.hpp.