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/bytecodeListing/kt47328.kt

@@ -1,6 +1,6 @@
 // This test can be removed as soon as the compiler stops supporting language version 1.5.
 // !LANGUAGE: -ProhibitJvmFieldOnOverrideFromInterfaceInPrimaryConstructor
-// WITH_RUNTIME
+// WITH_STDLIB
 
 interface A { val x: Int }