[clang] [clang]Avoid to check created local variable multiple time when evaluating (PR #69106)

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mzyKi wrote:

> > I test example in branch llvmorg-16.0.6,ExprConstant.cpp also has this assertion but it will not result in crash.
> 
> Have you find the exact commit to break this case? @mzyKi

@HerrCai0907 after this commit 610ec954e1f81c0e8fcadedcd25afe643f5a094e , clang will crash in test code.

https://github.com/llvm/llvm-project/pull/69106