[clang] [clang][dataflow] Don't propagate result objects in unevaluated contexts (PR #90438)

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martinboehme wrote:

> Hello and good morning from the UK!
> 
> It looks as though this change caused a test failure on the following buildbot: https://lab.llvm.org/buildbot/#/builders/216/builds/38446
> 
> Are you able to take a look see?
> 
> many thanks for yoru time, Tom W

Sorry, didn't see this in time.

> Reverted in [2252c5c](https://github.com/llvm/llvm-project/commit/2252c5c42b95dd12dda0c7fb1b2811f943b21949)

Thanks for the revert!

Will investigate and reland with a fix.

https://github.com/llvm/llvm-project/pull/90438