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/annotations/instances/annotationInstances.kt

@@ -4,7 +4,7 @@
 // (supported: JVM_IR, JS_IR(_E6))
 // Regular JS works too, but without proper hashCode or equals
 
-// WITH_RUNTIME
+// WITH_STDLIB
 // !LANGUAGE: +InstantiationOfAnnotationClasses
 
 // note: taken from ../parameters.kt and ../parametersWithPrimitiveValues.kt