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kotlinlang

is there any expected performance penalty for enabling `-Xextended-compiler-checks`?

Hi Zac, also curious and not sure about the performance penalty but in my local fork its only usage in 1.5.0 is here where it checks for super types in the call checkers resolution phase. <https://github.com/JetBrains/kotlin/blob/1.5.0/compiler/frontend/src/org/jetbrains/kotlin/resolve/checkers/MissingDependencySupertypeChecker.kt#L54|https://github.com/JetBrains/kotlin/blob/1.5.0/compiler/frontend/src/org/jetbrains/kotlin/resolve/checkers/MissingDependencySupertypeChecker.kt#[…]4>

I'm just going to file an issue requesting documentation

<https://youtrack.jetbrains.com/issue/KT-46654>