Add additional helpers to bitmask data structure

This commit addresses the case where a struct containing a bitfield is wrapped in a struct such as UnsafeCell which allows interior mutability. Previously, bitfield accessors only allowed a receiver. This becomes problematic in the case of interior mutability as raw pointer access may be required so as not to violate the aliasing rules in Rust.
rust-lang · Jul 30, 2024 · 9099f0c · 9099f0c
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diff --git a/bindgen-tests/tests/expectations/tests/bitfield-32bit-overflow.rs b/bindgen-tests/tests/expectations/tests/bitfield-32bit-overflow.rs
diff --git a/bindgen-tests/tests/expectations/tests/bitfield-large.rs b/bindgen-tests/tests/expectations/tests/bitfield-large.rs
diff --git a/bindgen-tests/tests/expectations/tests/bitfield-linux-32.rs b/bindgen-tests/tests/expectations/tests/bitfield-linux-32.rs