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/compileKotlinAgainstKotlin/jvm8/jvm8against6/delegation/diamond.kt

@@ -9,7 +9,7 @@ interface Test {
 
 // MODULE: main(lib)
 // JVM_TARGET: 1.8
-// WITH_RUNTIME
+// WITH_STDLIB
 // FILE: 2.kt
 interface Test2 : Test {
     @JvmDefault

compiler/testData/codegen/box/compileKotlinAgainstKotlin/jvm8/jvm8against6/delegation/diamond2.kt

@@ -9,7 +9,7 @@ interface Test {
 
 // MODULE: main(lib)
 // JVM_TARGET: 1.8
-// WITH_RUNTIME
+// WITH_STDLIB
 // FILE: 2.kt
 open class TestClass : Test {
     override fun test(): String {

compiler/testData/codegen/box/compileKotlinAgainstKotlin/jvm8/jvm8against6/delegation/diamond3.kt

@@ -9,7 +9,7 @@ interface Test {
 
 // MODULE: main(lib)
 // JVM_TARGET: 1.8
-// WITH_RUNTIME
+// WITH_STDLIB
 // FILE: 2.kt
 abstract class TestClass : Test {
     abstract override fun test(): String

compiler/testData/codegen/box/compileKotlinAgainstKotlin/jvm8/jvm8against6/simpleCallWithBigHierarchy.kt

@@ -9,7 +9,7 @@ interface Test {
 
 // MODULE: main(lib)
 // JVM_TARGET: 1.8
-// WITH_RUNTIME
+// WITH_STDLIB
 // FILE: 2.kt
 interface Test2 : Test {
     @JvmDefault

compiler/testData/codegen/box/compileKotlinAgainstKotlin/jvm8/jvm8against6/simpleCallWithHierarchy.kt

@@ -10,7 +10,7 @@ interface Test {
 
 // MODULE: main(lib)
 // JVM_TARGET: 1.8
-// WITH_RUNTIME
+// WITH_STDLIB
 // FILE: 2.kt
 interface Test2 : Test {
     @JvmDefault

compiler/testData/codegen/box/compileKotlinAgainstKotlin/jvm8/jvm8against6/simplePropWithHierarchy.kt

@@ -9,7 +9,7 @@ interface Test {
 
 // MODULE: main(lib)
 // JVM_TARGET: 1.8
-// WITH_RUNTIME
+// WITH_STDLIB
 // FILE: 2.kt
 interface Test2 : Test {
     @JvmDefault