Fix noStdlib cli test

Replace 'isExternal' with 'name', since 'name' is still available in builtins and 'isExternal' is only accessible with a proper stdlib dependency.

compiler/testData/cli/jvm/noStdlib.kt

@@ -3,6 +3,6 @@ import kotlin.reflect.*
 fun foo() {
     String::class.primaryConstructor
     Void::class
-    ::foo.isExternal
+    ::foo.name
     listOf(42)
 }

compiler/testData/cli/jvm/noStdlib.out

@@ -5,10 +5,10 @@ compiler/testData/cli/jvm/noStdlib.kt:4:19: error: unresolved reference: primary
     String::class.primaryConstructor
                   ^
 compiler/testData/cli/jvm/noStdlib.kt:6:7: error: cannot access built-in declaration 'kotlin.Unit'. Ensure that you have a dependency on the Kotlin standard library
-    ::foo.isExternal
+    ::foo.name
       ^
 compiler/testData/cli/jvm/noStdlib.kt:6:11: error: cannot access built-in declaration 'kotlin.reflect.KFunction0'. Ensure that you have a dependency on the Kotlin standard library
-    ::foo.isExternal
+    ::foo.name
           ^
 compiler/testData/cli/jvm/noStdlib.kt:7:5: error: unresolved reference: listOf
     listOf(42)