Add test skips for deopt_fuzzer

These tests rely on predictable opt & deopt timings. Also add the
--opt flag to tests to force optimization even in configurations that
contain the --no-opt flag.

Bug: v8:9972,chromium:1049982
Change-Id: Ic161d188ebfae9aaae6a160d365413abedfee5f1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2050402Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66231}

test/mjsunit/mjsunit.status

@@ -847,6 +847,8 @@
   'compiler/serializer-dead-after-jump': [SKIP],
   'compiler/serializer-dead-after-return': [SKIP],
   'compiler/serializer-transition-propagation': [SKIP],
+  'regress/regress-1049982-1': [SKIP],
+  'regress/regress-1049982-2': [SKIP],
 
   # Bounds check triggers forced deopt for array constructors.
   'array-constructor-feedback': [SKIP],

test/mjsunit/regress/regress-1049982-1.js

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
-// Flags: --allow-natives-syntax
+// Flags: --allow-natives-syntax --opt
 
 const xs = [1,2,3,4,5,6,7,8,9];
 let deopt = false;

test/mjsunit/regress/regress-1049982-2.js

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
-// Flags: --allow-natives-syntax
+// Flags: --allow-natives-syntax --opt
 
 const xs = [1,2,3,4,5,6,7,8,9];
 let deopt = false;