[Analysis API, FIR] migrate ::class.java -> ::class inside error messages

They seem to provide similar results and the `.java` part is redundant

analysis/symbol-light-classes/tests/org/jetbrains/kotlin/light/classes/symbol/base/AbstractSymbolLightClassesParentingTestBase.kt

@@ -230,7 +230,7 @@ open class AbstractSymbolLightClassesParentingTestBase(
                             assertions.assertTrue(owner is SymbolLightMemberModifierList<*>)
 
                         else ->
-                            throw IllegalStateException("Unexpected annotation owner kind: ${lastDeclaration::class.java}")
+                            throw IllegalStateException("Unexpected annotation owner kind: ${lastDeclaration::class}")
                     }
                 }