Description
See title. This is necessary to support manual indexing through pointer arithmetic when the stored type itself contains a vk::BufferPointer. I don't think there should be any problems with it - afaik the stored address is always expected to be 64-bit.

Steps to Reproduce
https://godbolt.org/z/aTf8r4Wza

Actual Behavior

<source>:8:20: error: invalid application of 'sizeof' to non-numeric type 'vk::BufferPointer<int>'
    intBuf.Get() = sizeof(vk::BufferPointer<int>);

Environment

• DXC version: trunk
• Host Operating System: Windows 11