[TESTS] Extract common backend directives into ConfigurationDirectives

compiler/test-infrastructure/tests/org/jetbrains/kotlin/test/directives/ConfigurationDirectives.kt

@@ -11,4 +11,12 @@ object ConfigurationDirectives : SimpleDirectivesContainer() {
     val KOTLIN_CONFIGURATION_FLAGS by stringDirective(
         "List of kotlin configuration flags"
     )
+
+    val WITH_RUNTIME by directive(
+        description = """
+            Add Kotlin stdlib to classpath
+            This directive is deprecated, use WITH_STDLIB instead
+        """.trimIndent()
+    )
+    val WITH_STDLIB by directive("Add Kotlin runtime to classpath")
 }