Change implementations of contentEquals and minOf/maxOf for Native

To conform to the behavior in other platforms.

libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt

@@ -99,18 +99,16 @@ object ArrayOps : TemplateGroupBase() {
             }
         }
         on(Platform.Native) {
+            fun notEq(operand1: String, operand2: String) = when {
+                primitive?.isFloatingPoint() == true -> "!$operand1.equals($operand2)"
+                else -> "$operand1 != $operand2"
+            }
             body {
                 """
-                if (this === other) {
+                if (this === other) return true
-                    return true
+                if (size != other.size) return false
-                }
-                if (size != other.size) {
-                    return false
-                }
                 for (i in indices) {
-                    if (this[i] != other[i]) {
+                    if (${notEq("this[i]", "other[i]")}) return false
-                        return false
-                    }
                 }
                 return true
                 """

libraries/tools/kotlin-stdlib-gen/src/templates/Comparables.kt

@@ -178,11 +178,10 @@ object ComparableOps : TemplateGroupBase() {
                 on(Platform.Native) {
                     body {
                         """
-                        // TODO: Check +/-0.0
                         return when {
                             a.isNaN() -> a
                             b.isNaN() -> b
-                            else -> $defaultImpl
+                            else -> if (a.compareTo(b) <= 0) a else b
                         }
                         """
                     }
@@ -318,12 +317,7 @@ object ComparableOps : TemplateGroupBase() {
                 on(Platform.Native) {
                     body {
                         """
-                        // TODO: Check +/-0.0
+                        return if (a.compareTo(b) >= 0) a else b
-                        return when {
-                            a.isNaN() -> a
-                            b.isNaN() -> b
-                            else -> $defaultImpl
-                        }
                         """
                     }
                 }