/**
 * Whether unbound IR symbols should be stubbed instead of linked.
 * This should be enabled if the compiled file could refer to symbols defined in another file of the same module.
 * Such symbols are not compiled (only the file is passed to the backend) and so they cannot be linked from a dependency.
 */
val STUB_UNBOUND_IR_SYMBOLS: CompilerConfigurationKey<Boolean> = CompilerConfigurationKey<Boolean>("stub unbound IR symbols")

        ) {
            // there is no way to properly map KtModule to ModuleDescriptor,
            // Multi-module [KtFe10AnalysisHandlerExtension]s are used only for tests,
            // so just by name comparison should work as all module names are different
            return null
        }

        resolveSession = componentProvider.get()
        deprecationResolver = componentProvider.get()

            buildSet {
                // Add an empty scope to the shadowed set to give GlobalSearchScope.union something
                // to work with if there are no extension tools.
                // If there are extension tools, any empty scopes, whether from shadowedSearchScope
                // on the extension tools or from this add() call, will be ignored.
                add(GlobalSearchScope.EMPTY_SCOPE)

`Dependency verification failed` errors when local artifacts are absent or have different hashes listed in the
[verification-metadata.xml](https://github.com/JetBrains/kotlin/blob/master/gradle/verification-metadata.xml) file.

It's expected that `verification-metadata.xml` should only be updated with the commits that modify the build. There are some tips how
to perform such updates:

 * stub-indexing binary libraries). And in general, querying the symbol names provider might be faster since its sets are cached, which is
 * not necessarily the case for declaration providers (e.g. the IDE declaration provider hitting the index without caching).
 *

import org.jetbrains.kotlin.psi.KtElement
import java.util.concurrent.ConcurrentMap
import kotlin.reflect.KClass

/**
 * [KtFirAnalysisSessionProvider] keeps [KtFirAnalysisSession]s in a cache, which are actively invalidated with their associated underlying
 * [LLFirSession][org.jetbrains.kotlin.analysis.low.level.api.fir.sessions.LLFirSession]s.
 */

    }

    /**
     * [isVisibleByPsi] is a heuristic that decides visibility for most [KtFirPsiJavaClassSymbol]s without deferring to its FIR symbol,
     * thereby avoiding lazy construction of the FIR class. The visibility rules are tailored specifically for Java classes accessed from
     * Kotlin. They cover the most popular visibilities `private`, `public`, and default (package) visibility for top-level and nested
     * classes.
     *