Move Oddball/String to %Typearray%.prototype.fill fast path

test/mjsunit/es6/typedarray-fill.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-var typedArrayConstructors = [
+var intArrayConstructors = [
   Uint8Array,
   Int8Array,
   Uint16Array,
   Int16Array,
   Uint32Array,
   Int32Array,
-  Uint8ClampedArray,
+  Uint8ClampedArray
+];
+
+var floatArrayConstructors = [
   Float32Array,
-  Float64Array];
+  Float64Array
+];
+
+var typedArrayConstructors = [...intArrayConstructors, ...floatArrayConstructors];
 
 for (var constructor of typedArrayConstructors) {
   assertEquals(1, constructor.prototype.fill.length);
 
   assertArrayEquals([], new constructor([]).fill(8));
   assertArrayEquals([8, 8, 8, 8, 8], new constructor([0, 0, 0, 0, 0]).fill(8));
   assertArrayEquals([0, 8, 8, 8, 8], new constructor([0, 0, 0, 0, 0]).fill(8, 1));
   assertArrayEquals([0, 0, 0, 0, 0], new constructor([0, 0, 0, 0, 0]).fill(8, 10));
   assertArrayEquals([8, 8, 8, 8, 8], new constructor([0, 0, 0, 0, 0]).fill(8, -5));
   assertArrayEquals([0, 8, 8, 8, 0], new constructor([0, 0, 0, 0, 0]).fill(8, 1, 4));
   assertArrayEquals([0, 8, 8, 8, 0], new constructor([0, 0, 0, 0, 0]).fill(8, 1, -1));
   assertArrayEquals([0, 8, 8, 8, 8], new constructor([0, 0, 0, 0, 0]).fill(8, 1, 42));
   assertArrayEquals([0, 0, 8, 8, 8], new constructor([0, 0, 0, 0, 0]).fill(8, -3, 42));
   assertArrayEquals([0, 0, 8, 8, 0], new constructor([0, 0, 0, 0, 0]).fill(8, -3, 4));
   assertArrayEquals([0, 0, 0, 8, 0], new constructor([0, 0, 0, 0, 0]).fill(8, -2, -1));
   assertArrayEquals([0, 0, 0, 0, 0], new constructor([0, 0, 0, 0, 0]).fill(8, -1, -3));
   assertArrayEquals([8, 8, 8, 8, 0], new constructor([0, 0, 0, 0, 0]).fill(8, 0, 4));
 
   assertArrayEquals([0, 0, 0, 0, 0], new constructor([0, 0, 0, 0, 0]).fill(8, Infinity));
   assertArrayEquals([8, 8, 8, 8, 8], new constructor([0, 0, 0, 0, 0]).fill(8, -Infinity));
   assertArrayEquals([8, 8, 8, 8, 8], new constructor([0, 0, 0, 0, 0]).fill(8, 0, Infinity));
   assertArrayEquals([0, 0, 0, 0, 0], new constructor([0, 0, 0, 0, 0]).fill(8, 0, -Infinity));
 
   // Test exceptions
   assertThrows('constructor.prototype.fill.call(null)', TypeError);
   assertThrows('constructor.prototype.fill.call(undefined)', TypeError);
   assertThrows('constructor.prototype.fill.call([])', TypeError);
 
+  assertArrayEquals([0, 0, 0, 0, 0], new constructor([0, 0, 0, 0, 0]).fill(false));
+  assertArrayEquals([1, 1, 1, 1, 1], new constructor([0, 0, 0, 0, 0]).fill(true));
+  assertArrayEquals([0, 0, 0, 0, 0], new constructor([0, 0, 0, 0, 0]).fill(null));
+
   // Test ToNumber
   var s = "";
   var p = new Proxy({}, {get(t,k) { s += k.toString() + '\n'; return Reflect.get(t, k)}})
   new constructor(3).fill(p);
   assertEquals(s, `Symbol(Symbol.toPrimitive)
 valueOf
 toString
 Symbol(Symbol.toStringTag)
 Symbol(Symbol.toPrimitive)
 valueOf
 toString
 Symbol(Symbol.toStringTag)
 Symbol(Symbol.toPrimitive)
 valueOf
 toString
 Symbol(Symbol.toStringTag)
 `);
 
   // Shadowing length doesn't affect fill, unlike Array.prototype.fill
   var a = new constructor([2, 2]);
   Object.defineProperty(a, 'length', {value: 1});
   a.fill(3);
   assertArrayEquals([3, 3], [a[0], a[1]]);
   Array.prototype.fill.call(a, 4);
   assertArrayEquals([4, 3], [a[0], a[1]]);
 }
 
-// Empty args
-assertArrayEquals([0], new Uint8Array([0]).fill());
-assertArrayEquals([NaN], new Float32Array([0]).fill());
+for (var constructor of intArrayConstructors) {
+  assertArrayEquals([0, 0, 0, 0, 0], new constructor([0, 0, 0, 0, 0]).fill(undefined));
+  assertArrayEquals([0, 0, 0, 0, 0], new constructor([0, 0, 0, 0, 0]).fill());
+}
+
+for (var constructor of floatArrayConstructors) {
+  assertArrayEquals([NaN, NaN, NaN, NaN, NaN], new constructor([0, 0, 0, 0, 0]).fill(undefined));
+  assertArrayEquals([NaN, NaN, NaN, NaN, NaN], new constructor([0, 0, 0, 0, 0]).fill());
+}
 
 // Clamping
 assertArrayEquals([0, 0, 0, 0, 0], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(-10));
 assertArrayEquals([255, 255, 255, 255, 255], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(1000));
 
 assertArrayEquals([1, 1, 1, 1, 1], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(0.50001));
 assertArrayEquals([0, 0, 0, 0, 0], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(0.50000));
 assertArrayEquals([0, 0, 0, 0, 0], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(0.49999));
 // Check round half to even
 assertArrayEquals([2, 2, 2, 2, 2], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(1.50000));
 assertArrayEquals([2, 2, 2, 2, 2], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(2.50000));
 assertArrayEquals([3, 3, 3, 3, 3], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(2.50001));
 // Check infinity clamping.
 assertArrayEquals([0, 0, 0, 0, 0], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(-Infinity));
 assertArrayEquals([255, 255, 255, 255, 255], new Uint8ClampedArray([0, 0, 0, 0, 0]).fill(Infinity));