Backport '[clang] static operators should evaluate object argument (reland)' to release/18.x

[SuperSodaSea]

Please backport '[clang] static operators should evaluate object argument' (#68485, 30155fc) (#80108, ee01a2c) to 18.x.

CC @cor3ntin, @AaronBallman

[AaronBallman]

/cherry-pick 30155fc

[llvmbot]

@llvm/issue-subscribers-clang-codegen

Author: Tianlan Zhou (SuperSodaSea)

Please backport '[clang] static operators should evaluate object argument' (#68485, 30155fc) to 18.x.

CC @cor3ntin, @AaronBallman

[llvmbot]

@llvm/issue-subscribers-clang-frontend

Author: Tianlan Zhou (SuperSodaSea)

Please backport '[clang] static operators should evaluate object argument' (#68485, 30155fc) to 18.x.

CC @cor3ntin, @AaronBallman

[llvmbot]

Failed to cherry-pick: 30155fc

https://github.com/llvm/llvm-project/actions/runs/7715654626

Please manually backport the fix and push it to your github fork. Once this is done, please create a pull request