These are reported as clippy::semicolon_inside_block and clippy::as_ptr_cast_mut.
clippy::semicolon_inside_block can be configured not to lint single-line
blocks; just go with the default.
Reviewed-by: Junjie Mao <junjie.mao@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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