Align the Boolean.hashCode() value across platforms

Boolean.hashCode() should return 1231/1237 for true/false correspondingly.

As a part of efforts to stabilize Native stdlib.

libraries/stdlib/wasm/builtins/kotlin/Boolean.kt

@@ -58,7 +58,7 @@ public class Boolean private constructor(private val value: Boolean) : Comparabl
         if (this) "true" else "false"
 
     override fun hashCode(): Int =
-        toInt()
+        if (this) 1231 else 1237
 
     @kotlin.internal.IntrinsicConstEvaluation
     override fun equals(other: Any?): Boolean {

libraries/stdlib/wasm/internal/kotlin/wasm/internal/ExternalWrapper.kt

@@ -79,7 +79,7 @@ return (obj) => {
         case "number":
             return numberHashCode(obj);
         case "boolean":
-            return obj;
+            return obj ? 1231 : 1237;
         default:
             return getStringHashCode(String(obj)); 
     }