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kotlinlang

When upgrading from 1.7.21 to 1.8.0-RC I start getting compilation errors:

```Fir is not initialized for FirRegularClassSymbol java/lang/invoke/LambdaMetafactory```
I reported that here:

<https://youtrack.jetbrains.com/issue/KT-55483/K2-Fir-is-not-initialized-for-FirRegularClassSymbol-java-lang-invoke-LambdaMetafactory>?

Sometimes, out of a large codebase it is hard to create a small, anonymous reproducer code sample. Any tips on how to do that very fast? Just keep the file structure but fill the source code file with junk? Delete all files not relevant to the compilation error? (In my case, what was left did not reproduce the bug)

This is a weird one - different compiler errors on different compilation runs. Details in youtrack