[kotlin] do not try to search Java inheritors from FirIdeKotlinDirectInheritorsProvider

We will still filter them out later

This way we will avoid creating LC when not needed

^KTIJ-31171 fixed

GitOrigin-RevId: d5040c5091962956c9950a2ac00439c72a13aefe

plugins/kotlin/base/fir/analysis-api-platform/src/org/jetbrains/kotlin/idea/base/fir/analysisApiPlatform/FirIdeKotlinDirectInheritorsProvider.kt

@@ -31,6 +31,7 @@ class FirIdeKotlinDirectInheritorsProvider : KotlinDirectInheritorsProvider {
             ktClass = ktClass,
             searchScope = kotlinOnlyScope,
             includeLocal = includeLocalInheritors,
+            searchOnlyInKotlin = true,
         )
 
         return DirectKotlinClassInheritorsSearch.search(searchParameters).filterIsInstance<KtClassOrObject>().toList()

plugins/kotlin/kotlin.searching/src/org/jetbrains/kotlin/idea/searching/inheritors/DirectKotlinClassDelegatedSearcher.kt

@@ -22,6 +22,7 @@ private val EVERYTHING_BUT_KOTLIN = object : QueryFactory<PsiClass, DirectClassI
 internal class DirectKotlinClassDelegatedSearcher : Searcher<DirectKotlinClassInheritorsSearch.SearchParameters, PsiElement> {
     @RequiresReadLock
     override fun collectSearchRequest(parameters: DirectKotlinClassInheritorsSearch.SearchParameters): Query<out PsiElement>? {
+        if (parameters.searchOnlyInKotlin) return null
         val baseClass = parameters.ktClass
         if (baseClass.isEnum()) {
             //enum inheritors may be found in the same class only, kotlin class

plugins/kotlin/kotlin.searching/src/org/jetbrains/kotlin/idea/searching/inheritors/DirectKotlinClassInheritorsSearch.kt

@@ -23,6 +23,7 @@ object DirectKotlinClassInheritorsSearch {
         val searchScope: SearchScope,
         val includeAnonymous: Boolean = true,
         val includeLocal: Boolean = true,
+        val searchOnlyInKotlin: Boolean = false,
     ) : com.intellij.model.search.SearchParameters<PsiElement> {
         override fun getProject(): Project {
             return runReadAction { ktClass.project }