FIR: fix hasTopLevelClassOf optimization in deserialized provider

Before this commit, we answered 'no top level class' if Java class finder
could not calculate known class names. However, it's incorrect,
because this situation means 'don't actually know'.

To precise semantics, function name was also inverted

compiler/fir/java/src/org/jetbrains/kotlin/fir/java/deserialization/KotlinDeserializedJvmSymbolsProvider.kt

@@ -88,18 +88,20 @@ class KotlinDeserializedJvmSymbolsProvider(
 
     private val knownClassNamesInPackage = mutableMapOf<FqName, Set<String>?>()
 
-    private fun hasTopLevelClassOf(classId: ClassId): Boolean {
+    // This function returns true if we are sure that no top-level class with this id is available
+    // If it returns false, it means we can say nothing about this id
+    private fun hasNoTopLevelClassOf(classId: ClassId): Boolean {
         val knownNames = knownClassNamesInPackage.getOrPut(classId.packageFqName) {
             javaClassFinder.knownClassNamesInPackage(classId.packageFqName)
         } ?: return false
-        return classId.relativeClassName.topLevelName() in knownNames
+        return classId.relativeClassName.topLevelName() !in knownNames
     }
 
     private fun computePackagePartsInfos(packageFqName: FqName): List<PackagePartsCacheData> {
 
         return packagePartProvider.findPackageParts(packageFqName.asString()).mapNotNull { partName ->
             val classId = ClassId.topLevel(JvmClassName.byInternalName(partName).fqNameForTopLevelClassMaybeWithDollars)
-            if (!hasTopLevelClassOf(classId)) return@mapNotNull null
+            if (hasNoTopLevelClassOf(classId)) return@mapNotNull null
             val kotlinJvmBinaryClass = kotlinClassFinder.findKotlinClass(classId) ?: return@mapNotNull null
 
             val header = kotlinJvmBinaryClass.classHeader
@@ -308,7 +310,7 @@ class KotlinDeserializedJvmSymbolsProvider(
         classId: ClassId,
         parentContext: FirDeserializationContext? = null
     ): FirRegularClassSymbol? {
-        if (!hasTopLevelClassOf(classId)) return null
+        if (hasNoTopLevelClassOf(classId)) return null
         if (classesCache.containsKey(classId)) return classesCache[classId]
 
         if (classId in handledByJava) return null