Adds missing test file for Array.prototype.indexOf

test/built-ins/Array/prototype/indexOf/resizable-buffer-special-float-values.js

@@ -0,0 +1,26 @@
+// Copyright 2023 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-%array%.prototype.indexof
+description: >
+  Array.p.indexOf behaves correctly for special float values on TypedArrays
+  backed by resizable buffers.
+includes: [resizableArrayBufferUtils.js]
+features: [resizable-arraybuffer, Array.prototype.includes]
+---*/
+
+for (let ctor of floatCtors) {
+  const rab = CreateResizableArrayBuffer(4 * ctor.BYTES_PER_ELEMENT, 8 * ctor.BYTES_PER_ELEMENT);
+  const lengthTracking = new ctor(rab);
+  lengthTracking[0] = -Infinity;
+  lengthTracking[1] = -Infinity;
+  lengthTracking[2] = Infinity;
+  lengthTracking[3] = Infinity;
+  lengthTracking[4] = NaN;
+  lengthTracking[5] = NaN;
+  assert.sameValue(Array.prototype.indexOf.call(lengthTracking, -Infinity), 0);
+  assert.sameValue(Array.prototype.indexOf.call(lengthTracking, Infinity), 2);
+  // NaN is never found.
+  assert.sameValue(Array.prototype.indexOf.call(lengthTracking, NaN), -1);
+}