Replace all occurrences of WITH_RUNTIME with WITH_STDLIB

We are going to deprecate `WITH_RUNTIME` directive. The main reason
behind this change is that `WITH_STDLIB` directive better describes
its meaning, specifically it will add kotlin stdlib to test's classpath.

compiler/testData/codegen/box/callableReference/bound/arrayConstructorArgument.kt

@@ -1,4 +1,4 @@
-// WITH_RUNTIME
+// WITH_STDLIB
 
 class C(val x: String) {
     fun foo(i: Int): Char = x[i]

compiler/testData/codegen/box/callableReference/bound/boundJvmFieldInInterfaceCompanion.kt

@@ -1,6 +1,6 @@
 // !LANGUAGE: +JvmFieldInInterface
 // TARGET_BACKEND: JVM
-// WITH_RUNTIME
+// WITH_STDLIB
 
 class Bar(val value: String)
 

compiler/testData/codegen/box/callableReference/bound/coercionToUnit.kt

@@ -1,4 +1,4 @@
-// WITH_RUNTIME
+// WITH_STDLIB
 
 class Foo
 

compiler/testData/codegen/box/callableReference/bound/kt15446.kt

@@ -1,5 +1,5 @@
 
-//WITH_RUNTIME
+// WITH_STDLIB
 fun box(): String {
     val a = intArrayOf(1, 2)
     val b = arrayOf("OK")

compiler/testData/codegen/box/callableReference/bound/localUnitFunction.kt

@@ -1,5 +1,5 @@
 // TARGET_BACKEND: JVM
-// WITH_RUNTIME
+// WITH_STDLIB
 
 fun box(): String {
     fun foo(): Unit {}

compiler/testData/codegen/box/callableReference/bound/syntheticExtensionOnLHS.kt

@@ -1,5 +1,5 @@
 // TARGET_BACKEND: JVM
-// WITH_RUNTIME
+// WITH_STDLIB
 // FILE: A.java
 
 public class A {