test(samples): add new samples

Author: kotlin-samples-pusher-bot

src/test/resources/test-compile-data/jvm/kotlin-web-site/numbers/f56d9449111795feee96b7f922b3320d.8.kt

@@ -1,9 +1,15 @@
 fun main() {
     //sampleStart
+    // Operand statically typed as floating-point number
     println(Double.NaN == Double.NaN)                 // false
+    // Operand NOT statically typed as floating-point number
+    // So NaN is equal to itself
     println(listOf(Double.NaN) == listOf(Double.NaN)) // true
-    
+
+    // Operand statically typed as floating-point number
     println(0.0 == -0.0)                              // true
+    // Operand NOT statically typed as floating-point number
+    // So -0.0 is less than 0.0
     println(listOf(0.0) == listOf(-0.0))              // false
 
     println(listOf(Double.NaN, Double.POSITIVE_INFINITY, 0.0, -0.0).sorted())