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/invokedynamic/sam/functionRefToJavaInterface/specialFunctions/intPlus.kt

@@ -4,7 +4,7 @@
 // IGNORE_BACKEND_FIR: JVM_IR
 //  ^ fir2ir creates an IrConst(value=2, type=@EnhancedNullability Int), which
 //    the backend generates as an int instead of Integer
-// WITH_RUNTIME
+// WITH_STDLIB
 // JVM_TARGET: 1.8
 // FULL_JDK