Fix issue with last_gc_before_oom flag being reset by intervening gen 1 GC.#78973

PeterSolMS merged 1 commit intodotnet:maindotnet/runtime:mainfrom

PeterSolMS:Fix_issue_with_spurious_full_GC_leading_to_premature_OOMPeterSolMS/runtime-1:Fix_issue_with_spurious_full_GC_leading_to_premature_OOMCopy head branch name to clipboard