Fix use-after-move in SimpleLinkedHashMap
Fix use-after-move in SimpleLinkedHashMap

Fix use-after-move (potential) bugs found by the
"bugprone-use-after-move" clang-tidy check (see
https://crbug.com/1122844).

PiperOrigin-RevId: 330937081
Change-Id: I4a9e742d128c444b3c3fec63a35c86bbf2772c7d

google/quiche,google/quiche,google/quiche,google/quiche