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/defaultArguments/constructor/checkIfConstructorIsSynthetic.kt

@@ -1,5 +1,5 @@
 // TARGET_BACKEND: JVM
-// WITH_RUNTIME
+// WITH_STDLIB
 
 class A(value: Int = 1)
 

compiler/testData/codegen/box/defaultArguments/constructor/manyArgs.kt

@@ -1,5 +1,5 @@
 // TARGET_BACKEND: JVM
-// WITH_RUNTIME
+// WITH_STDLIB
 
 class A(val a: Int = 1,
         val b: Int = 2,

compiler/testData/codegen/box/defaultArguments/kt36853_fibonacci.kt

@@ -1,4 +1,4 @@
-// WITH_RUNTIME
+// WITH_STDLIB
 
 // IGNORE_BACKEND_FIR: JVM_IR
 //  java.lang.StackOverflowError

compiler/testData/codegen/box/defaultArguments/kt36972_companion.kt

@@ -1,5 +1,5 @@
 // TARGET_BACKEND: JVM
-// WITH_RUNTIME
+// WITH_STDLIB
 
 class Host {
     companion object {

compiler/testData/codegen/box/defaultArguments/kt36972_object.kt

@@ -1,5 +1,5 @@
 // TARGET_BACKEND: JVM
-// WITH_RUNTIME
+// WITH_STDLIB
 
 object Host {
     @JvmStatic

compiler/testData/codegen/box/defaultArguments/kt6382.kt

@@ -1,4 +1,4 @@
-// WITH_RUNTIME
+// WITH_STDLIB
 
 fun box(): String {
     return if (A().run() == "Aabc") "OK" else "fail"

compiler/testData/codegen/box/defaultArguments/superCallCheck.kt

@@ -1,5 +1,5 @@
 // TARGET_BACKEND: JVM
-// WITH_RUNTIME
+// WITH_STDLIB
 
 open class MyClass {
     fun def(i: Int = 0): Int {

compiler/testData/codegen/box/defaultArguments/superCallHandlerOrder.kt

@@ -1,5 +1,5 @@
 // TARGET_BACKEND: JVM
-// WITH_RUNTIME
+// WITH_STDLIB
 
 open class O {
     open fun foo(s: String = throw Error("Fail: this expression should not be evaluated")) {}