Unused symbol: handling of import as alias not only for objects / enums #KT-11933 Fixed

idea/testData/quickfix/removeUnused/usedClassAsAlias.kt

@@ -0,0 +1,10 @@
+// "Safe delete 'Imported'" "false"
+// ACTION: Create test
+// ACTION: Move 'ImportedClass' to separate file
+import ImportedClass as ClassAlias
+
+class <caret>ImportedClass
+
+fun use() {
+    ClassAlias().hashCode()
+}