Test data fixed

compiler/testData/diagnostics/tests/nullabilityAndSmartCasts/kt1270.kt

@@ -1,10 +1,11 @@
+// !DIAGNOSTICS: -UNUSED_VARIABLE
 //KT-1270 Poor highlighting when trying to dereference a nullable reference
 
 package kt1270
 
 fun foo() {
     val sc = java.util.HashMap<String, SomeClass>()[""]
-    val <!UNUSED_VARIABLE!>value<!> = sc<!UNSAFE_CALL!>.<!>value
+    val value = sc.value
 }
 
 private class SomeClass() {