Backport '[clang] static operators should evaluate object argument (r…

…eland)' to release/18.x (llvm#80109)

Cherry picked from commit ee01a2c.

Closes llvm#80041, backport llvm#80108.

Co-authored-by: Shafik Yaghmour <shafik@users.noreply.github.com>
Co-authored-by: cor3ntin <corentinjabot@gmail.com>
Co-authored-by: Aaron Ballman <aaron@aaronballman.com>

clang/docs/ReleaseNotes.rst

@@ -340,6 +340,9 @@ Bug Fixes to C++ Support
   specialization right before its declaration context. (#GH64082)
 - Fixed a constraint comparison bug for friend declarations. (#GH78101)
 
+- Fix incorrect code generation caused by the object argument of ``static operator()`` and ``static operator[]`` calls not being evaluated.
+  Fixes (`#67976 <https://github.com/llvm/llvm-project/issues/67976>`_)
+
 Bug Fixes to AST Handling
 ^^^^^^^^^^^^^^^^^^^^^^^^^