Specify JVM target backend for test with '::class.java' usage

compiler/testData/codegen/boxInline/smap/inlineOnly/reified.kt

@@ -1,4 +1,4 @@
-// IGNORE_BACKEND: NATIVE
+// TARGET_BACKEND: JVM
 // FILE: 1.kt
 // WITH_REFLECT
 package test

compiler/testData/codegen/boxInline/smap/inlineOnly/reifiedProperty.kt

@@ -1,8 +1,8 @@
-// IGNORE_BACKEND: NATIVE, JVM_IR
+// IGNORE_BACKEND: JVM_IR
+// TARGET_BACKEND: JVM
 // FILE: 1.kt
 // WITH_REFLECT
 package test
-
 inline val <reified T : Any> T.className: String; get() = T::class.java.simpleName
 
 // FILE: 2.kt