FIR: protect importing scopes from empty names

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirAbstractImportingScope.kt

@@ -49,7 +49,7 @@ abstract class FirAbstractImportingScope(session: FirSession, lookupInFir: Boole
             if (action.stop()) {
                 return ProcessorAction.STOP
             }
-        } else {
+        } else if (name.isSpecial || name.identifier.isNotEmpty()) {
             val matchedClass = provider.getClassLikeSymbolByFqName(ClassId(import.packageFqName, name))
             if (processConstructors(
                     matchedClass,

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirAbstractStarImportingScope.kt

@@ -27,10 +27,10 @@ abstract class FirAbstractStarImportingScope(
     ): Boolean {
         for (import in starImports) {
             val relativeClassName = import.relativeClassName
-            val classId = if (relativeClassName == null) {
-                ClassId(import.packageFqName, name)
-            } else {
-                ClassId(import.packageFqName, relativeClassName.child(name), false)
+            val classId = when {
+                !name.isSpecial && name.identifier.isEmpty() -> return true
+                relativeClassName == null -> ClassId(import.packageFqName, name)
+                else -> ClassId(import.packageFqName, relativeClassName.child(name), false)
             }
             val symbol = provider.getClassLikeSymbolByFqName(classId) ?: continue
             if (!processor(symbol)) {