Some `clangarm64` fixes (#5439) #5408

Job	Run time
config	5s
fuzz smoke test	0s
win+VS build	0s
${{ matrix.vector.jobname }} (${{ matrix.vector.pool }})	0s
win build	0s
${{ matrix.vector.jobname }} (${{ matrix.vector.image }})	0s
documentation	0s
sparse	0s
static-analysis	0s
win+VS test	0s
win test	0s
	5s

Provide feedback