Import Cobalt 20.master.0.234144

Includes the following patches:
  https://cobalt-review.googlesource.com/c/cobalt/+/5590
  by n1214.hwang@samsung.com

  https://cobalt-review.googlesource.com/c/cobalt/+/5530
  by errong.leng@samsung.com

  https://cobalt-review.googlesource.com/c/cobalt/+/5570
  by devin.cai@mediatek.com
diff --git a/src/v8/test/mjsunit/regress/regress-crbug-937649.js b/src/v8/test/mjsunit/regress/regress-crbug-937649.js
new file mode 100644
index 0000000..5dd794d
--- /dev/null
+++ b/src/v8/test/mjsunit/regress/regress-crbug-937649.js
@@ -0,0 +1,18 @@
+// Copyright 2019 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.
+// Flags: --allow-natives-syntax
+
+(function() {
+function foo(x) {
+  const i = x > 0;
+  const dv = new DataView(ab);
+  return dv.getUint16(i);
+};
+%PrepareFunctionForOptimization(foo);
+const ab = new ArrayBuffer(2);
+foo(0);
+foo(0);
+%OptimizeFunctionOnNextCall(foo);
+foo(0);
+})();