JS backend: made Json::get and Json::set intrinsic.

(cherry picked from commit b1692e1)

js/js.libraries/src/core/json.kt

@@ -2,12 +2,9 @@ package js
 
 import js.library
 
-native
-public class Json() {
-    library("jsonGet")
-    fun get(parameterName: String): Any?
-    library("jsonSet")
-    fun set(parameterName: String, value: Any?): Unit
+native public class Json() {
+    fun get(propertyName: String): Any? = js.noImpl
+    fun set(propertyName: String, value: Any?): Unit = js.noImpl
 }
 
 library("jsonFromTuples")

js/js.translator/src/org/jetbrains/k2js/translate/intrinsic/functions/factories/TopLevelFIF.java

@@ -165,6 +165,9 @@ public final class TopLevelFIF extends CompositeFIF {
         String[] javaUtil = {"java", "util"};
         add(pattern(javaUtil, "HashMap", "<init>"), new MapSelectImplementationIntrinsic(false));
         add(pattern(javaUtil, "HashSet", "<init>"), new MapSelectImplementationIntrinsic(true));
+
+        add(pattern("js", "Json", "get"), ArrayFIF.GET_INTRINSIC);
+        add(pattern("js", "Json", "set"), ArrayFIF.SET_INTRINSIC);
     }
 
     private abstract static class NativeMapGetSet extends CallParametersAwareFunctionIntrinsic {

js/js.translator/testFiles/kotlin_lib.js

@@ -555,16 +555,6 @@ String.prototype.contains = function (s) {
         return res;
     };
 
-    //TODO: use intrinsic
-    Kotlin.jsonSet = function (obj, attrName, value) {
-        obj[attrName] = value;
-    };
-
-    Kotlin.jsonGet = function (obj, attrName) {
-        return obj[attrName];
-    };
-
-
     Kotlin.jsonAddProperties = function (obj1, obj2) {
         for (var p in obj2) {
             if (obj2.hasOwnProperty(p)) {