[clang] [clang-repl] fix error recovery while parsing completely fails (PR #127087)

[Vipul Cariappa via cfe-commits]

Vipul-Cariappa wrote:

My theory with limited testing: The crash is caused by assertion failure at https://github.com/llvm/llvm-project/blob/eb7c947272952d40d3235d89652a10da52cb2b4d/clang/lib/AST/DeclBase.cpp#L1757C1-L1758C54. So if we disable assertions it does not crash, and crashes otherwise.
Maybe you can confirm this.
There is a flaw in the logic of recovering from syntax/semantic errors. 

https://github.com/llvm/llvm-project/pull/127087