JS backend: switched to use native Function.bind(from ES5) instead library function b0-b4.

Removed unnecessary functions from jslib.

(cherry picked from commit f6550e9)

js/js.translator/src/org/jetbrains/k2js/translate/expression/InnerDeclarationTranslator.java

@@ -69,7 +69,7 @@ abstract class InnerDeclarationTranslator {
             return;
         }
 
-        List<JsExpression> expressions = getCapturedValueParametersList(bind);
+        List<JsExpression> expressions = bind.getArguments();
         for (CallableDescriptor descriptor : closureContext.getDescriptors()) {
             JsName name;
             if (descriptor instanceof VariableDescriptor) {
@@ -83,8 +83,4 @@ abstract class InnerDeclarationTranslator {
             expressions.add(name.makeRef());
         }
     }
-
-    protected List<JsExpression> getCapturedValueParametersList(JsInvocation invocation) {
-        return invocation.getArguments();
-    }
 }

js/js.translator/src/org/jetbrains/k2js/translate/expression/InnerFunctionTranslator.java

@@ -17,6 +17,7 @@
 package org.jetbrains.k2js.translate.expression;
 
 import com.google.dart.compiler.backend.js.ast.*;
+import com.intellij.util.SmartList;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
@@ -56,10 +57,7 @@ class InnerFunctionTranslator extends InnerDeclarationTranslator {
 
     @Override
     protected JsInvocation createInvocation(@NotNull JsNameRef nameRef, @Nullable JsExpression self) {
-        JsInvocation bind = new JsInvocation(context.namer().kotlin(getBindMethodName()));
-        bind.getArguments().add(nameRef);
-        bind.getArguments().add(self);
-        return bind;
+        return new JsInvocation(new JsNameRef("bind", nameRef), new SmartList<JsExpression>(self));
     }
 
     @NotNull
@@ -71,29 +69,4 @@ class InnerFunctionTranslator extends InnerDeclarationTranslator {
 
         return JsLiteral.NULL;
     }
-
-    @NotNull
-    private String getBindMethodName() {
-        if (closureContext.getDescriptors().isEmpty()) {
-            return !hasArguments() ? "b3" : "b4";
-        }
-        else {
-            return !hasArguments() ? (closureContext.getDescriptors().size() == 1 ? "b0" : "b1") : "b2";
-        }
-    }
-
-    private boolean hasArguments() {
-        return !getValueParameters().isEmpty() || descriptor.getReceiverParameter() != null;
-    }
-
-    @Override
-    protected List<JsExpression> getCapturedValueParametersList(JsInvocation invocation) {
-        if (closureContext.getDescriptors().size() > 1 || hasArguments()) {
-            JsArrayLiteral values = new JsArrayLiteral();
-            invocation.getArguments().add(values);
-            return values.getExpressions();
-        }
-
-        return super.getCapturedValueParametersList(invocation);
-    }
 }

js/js.translator/testFiles/kotlin_lib.js

@@ -569,52 +569,9 @@ var kotlin = {set:function (receiver, key, value) {
     Kotlin.sure = function (obj) {
         return obj;
     };
-
-    // native concat doesn't work for arguments
-    Kotlin.concat = function (a, b) {
-        var r = new Array(a.length + b.length);
-        var i = 0;
-        var n = a.length;
-        for (; i < n; i++) {
-            r[i] = a[i];
-        }
-        n = b.length;
-        for (var j = 0; j < n;) {
-            r[i++] = b[j++];
-        }
-        return r;
-    }
 })();
 
 Kotlin.assignOwner = function(f, o) {
   f.o = o;
   return f;
 };
-
-// we cannot use Function.bind, because if we bind with null self, but call with not null — fun must receive passed not null self
-// test case: WebDemoExamples2Test.testBuilder
-Kotlin.b0 = function (f, self, value) {
-    return function () {
-        return f.call(self !== null ? self : this, value);
-    }
-};
-Kotlin.b1 = function (f, self, values) {
-    return function () {
-        return f.apply(self !== null ? self : this, values);
-    }
-};
-Kotlin.b2 = function (f, self, values) {
-    return function () {
-        return f.apply(self !== null ? self : this, Kotlin.concat(values, arguments));
-    }
-};
-Kotlin.b3 = function (f, self) {
-    return function () {
-        return f.call(self)
-    }
-};
-Kotlin.b4 = function (f, self) {
-    return function () {
-        return f.apply(self, Kotlin.argumentsToArrayLike(arguments));
-    }
-};

js/js.translator/testFiles/kotlin_lib_ecma3.js

@@ -48,15 +48,6 @@ var Kotlin = {};
         return result;
     };
 
-    Kotlin.argumentsToArrayLike = function (args) {
-        var n = args.length;
-        var result = new Array(n);
-        while (n--) {
-            result[n] = args[n];
-        }
-        return result;
-    };
-
     function copyProperties(to, from) {
         for (var p in from) {
             if (from.hasOwnProperty(p)) {

js/js.translator/testFiles/kotlin_lib_ecma5.js

@@ -5,11 +5,6 @@ var Kotlin = Object.create(null);
 (function () {
     "use strict";
 
-    // ecma5 is still sucks — concat doesn't accept arguments, but apply does, so, we just return arguments
-    Kotlin.argumentsToArrayLike = function (args) {
-      return args;
-    };
-
     Kotlin.keys = Object.keys;
 
     Kotlin.isType = function (object, type) {