[clang] [Clang] FunctionEffect analysis was missing a CXXBindTemporaryExpr's implicit call to a destructor. (PR #166110)

[Doug Wyatt via cfe-commits]

dougsonos wrote:

TODO: Consider `auto x = []() { /* lambda body */ };`
which becomes `VarDecl` holding `ExprWithCleanups` holding `CXXBindTemporaryExpr`.

We currently look for a destructor on a VarDecl but I suspect that becomes a redundant check with this change. Need to verify.

https://github.com/llvm/llvm-project/pull/166110