JS: Drop native map get/set intrinsics altogether.

MutableMap.set extension operator is now common among stdlib and stdlib-js.
#KT-2323

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

@@ -7,7 +7,6 @@ public external fun eval(expr: String): dynamic = noImpl
 
 public external val undefined: Nothing? = noImpl
 
-inline operator fun <K, V> MutableMap<K, V>.set(key: K, value: V): V? = asDynamic().set(key, value)
 
 @library
 public fun println() {}

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/BoxJsTestGenerated.java

@@ -5723,12 +5723,6 @@ public class BoxJsTestGenerated extends AbstractBoxJsTest {
             doTest(fileName);
         }
 
-        @TestMetadata("kt2323.kt")
-        public void testKt2323() throws Exception {
-            String fileName = KotlinTestUtils.navigationMetadata("js/js.translator/testData/box/native/kt2323.kt");
-            doTest(fileName);
-        }
-
         @TestMetadata("library.kt")
         public void testLibrary() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("js/js.translator/testData/box/native/library.kt");

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

@@ -91,53 +91,6 @@ public final class TopLevelFIF extends CompositeFIF {
         }
     };
 
-    private static final FunctionIntrinsic NATIVE_MAP_GET = new NativeMapGetSet() {
-        @NotNull
-        @Override
-        protected String operationName() {
-            return "get";
-        }
-
-        @Nullable
-        @Override
-        protected ExpressionReceiver getExpressionReceiver(@NotNull ResolvedCall<?> resolvedCall) {
-            ReceiverValue result = resolvedCall.getDispatchReceiver();
-            return result instanceof ExpressionReceiver ? (ExpressionReceiver) result : null;
-        }
-
-        @Override
-        protected JsExpression asArrayAccess(
-                @NotNull JsExpression receiver,
-                @NotNull List<JsExpression> arguments,
-                @NotNull TranslationContext context
-        ) {
-            return ArrayFIF.GET_INTRINSIC.apply(receiver, arguments, context);
-        }
-    };
-
-    private static final FunctionIntrinsic NATIVE_MAP_SET = new NativeMapGetSet() {
-        @NotNull
-        @Override
-        protected String operationName() {
-            return "put";
-        }
-
-        @Nullable
-        @Override
-        protected ExpressionReceiver getExpressionReceiver(@NotNull ResolvedCall<?> resolvedCall) {
-            ReceiverValue result = resolvedCall.getExtensionReceiver();
-            return result instanceof ExpressionReceiver ? (ExpressionReceiver) result : null;
-        }
-
-        @Override
-        protected JsExpression asArrayAccess(
-                @NotNull JsExpression receiver,
-                @NotNull List<JsExpression> arguments,
-                @NotNull TranslationContext context
-        ) {
-            return ArrayFIF.SET_INTRINSIC.apply(receiver, arguments, context);
-        }
-    };
 
     private static final JsExpression getReferenceToOnlyTypeParameter(
             @NotNull CallInfo callInfo, @NotNull TranslationContext context
@@ -218,9 +171,6 @@ public final class TopLevelFIF extends CompositeFIF {
         add(pattern("kotlin", "arrayOfNulls"), new KotlinFunctionIntrinsic("nullArray"));
         add(pattern("kotlin", "iterator").isExtensionOf(FQ_NAMES.iterator.asString()), RETURN_RECEIVER_INTRINSIC);
 
-        add(pattern("kotlin.collections", "Map", "get").checkOverridden(), NATIVE_MAP_GET);
-        add(pattern("kotlin.js", "set").isExtensionOf(FQ_NAMES.mutableMap.asString()), NATIVE_MAP_SET);
-
         add(pattern("kotlin.js", "Json", "get"), ArrayFIF.GET_INTRINSIC);
         add(pattern("kotlin.js", "Json", "set"), ArrayFIF.SET_INTRINSIC);
 
@@ -230,51 +180,4 @@ public final class TopLevelFIF extends CompositeFIF {
         add(pattern("kotlin", "enumValueOf"), ENUM_VALUE_OF_INTRINSIC);
     }
 
-    private abstract static class NativeMapGetSet extends CallParametersAwareFunctionIntrinsic {
-        @NotNull
-        protected abstract String operationName();
-
-        @Nullable
-        protected abstract ExpressionReceiver getExpressionReceiver(@NotNull ResolvedCall<?> resolvedCall);
-
-        protected abstract JsExpression asArrayAccess(
-                @NotNull JsExpression receiver,
-                @NotNull List<JsExpression> arguments,
-                @NotNull TranslationContext context
-        );
-
-        @NotNull
-        @Override
-        public JsExpression apply(@NotNull CallInfo callInfo, @NotNull List<JsExpression> arguments, @NotNull TranslationContext context) {
-            ExpressionReceiver expressionReceiver = getExpressionReceiver(callInfo.getResolvedCall());
-            JsExpression thisOrReceiver = getThisOrReceiverOrNull(callInfo);
-            assert thisOrReceiver != null;
-            if (expressionReceiver != null) {
-                KtExpression expression = expressionReceiver.getExpression();
-                KtReferenceExpression referenceExpression = null;
-                if (expression instanceof KtReferenceExpression) {
-                    referenceExpression = (KtReferenceExpression) expression;
-                }
-                else if (expression instanceof KtQualifiedExpression) {
-                    KtExpression candidate = ((KtQualifiedExpression) expression).getReceiverExpression();
-                    if (candidate instanceof KtReferenceExpression) {
-                        referenceExpression = (KtReferenceExpression) candidate;
-                    }
-                }
-
-                if (referenceExpression != null) {
-                    DeclarationDescriptor candidate = BindingUtils.getDescriptorForReferenceExpression(context.bindingContext(),
-                                                                                                       referenceExpression);
-                    if (candidate instanceof PropertyDescriptor && AnnotationsUtils.isNativeObject(candidate)) {
-                        return asArrayAccess(thisOrReceiver, arguments, context);
-                    }
-                }
-            }
-
-            String mangledName = getStableMangledNameForDescriptor(JsPlatform.INSTANCE.getBuiltIns().getMutableMap(), operationName());
-
-            return new JsInvocation(JsAstUtils.pureFqn(mangledName, thisOrReceiver), arguments);
-        }
-    }
-
 }

js/js.translator/testData/box/native/kt2323.js

-var classes = {"answer": 42}, classesMutable = {};

js/js.translator/testData/box/native/kt2323.kt

-package foo
-
-
-external val classes: Map<String, Any> = noImpl
-
-external val classesMutable: HashMap<String, String> = noImpl
-
-fun box(): String {
-    classesMutable.set("why", "?")
-    return if (classes.get("answer") == 42 && classesMutable.get("why") == "?") "OK" else "fail"
-}
\ No newline at end of file

libraries/stdlib/src/kotlin/collections/Maps.kt

@@ -130,6 +130,14 @@ public inline operator fun <@kotlin.internal.OnlyInputTypes K, V> Map<out K, V>.
 public inline operator fun <@kotlin.internal.OnlyInputTypes K, V> Map<out K, V>.get(key: K): V?
         = @Suppress("UNCHECKED_CAST") (this as Map<K, V>).get(key)
 
+/**
+ * Allows to use the index operator for storing values in a mutable map.
+ */
+@kotlin.internal.InlineOnly
+public inline operator fun <K, V> MutableMap<K, V>.set(key: K, value: V): Unit {
+    put(key, value)
+}
+
 /**
  * Returns `true` if the map contains the specified [key].
  *

libraries/stdlib/src/kotlin/collections/MapsJVM.kt

@@ -11,14 +11,7 @@ import java.util.SortedMap
 import java.util.TreeMap
 import java.util.concurrent.ConcurrentMap
 
-/**
- * Allows to use the index operator for storing values in a mutable map.
- */
-// this code is JVM-specific, because JS has native set function
-@kotlin.internal.InlineOnly
-public inline operator fun <K, V> MutableMap<K, V>.set(key: K, value: V): Unit {
-    put(key, value)
-}
+
 
 /**
  * Concurrent getOrPut, that is safe for concurrent maps.