[debugger] do not restart frames that reference new.target for liveedit.

test/mjsunit/es6/debug-liveedit-new-target-2.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.
+
+// Flags: --expose-debug-as debug --allow-natives-syntax
+
+// Test that live-editing a frame to introduce new.target fails.
+
+Debug = debug.Debug
+var calls = 0;
+var exceptions = 0;
+var results = [];
+var replace_again;
+
+eval(`
+  function LogNewTarget() {
+    calls++;
+    ReplaceOnce();
+    results.push(true);
+  }
+`);
+
+function Replace(fun, original, patch) {
+  %ExecuteInDebugContext(function() {
+    var change_log = [];
+    try {
+      var script = Debug.findScript(fun);
+      var patch_pos = script.source.indexOf(original);
+      Debug.LiveEdit.TestApi.ApplySingleChunkPatch(
+          script, patch_pos, original.length, patch, change_log);
+    } catch (e) {
+      assertEquals("BLOCKED_NO_NEW_TARGET_ON_RESTART",
+                   change_log[0].functions_on_stack[0].replace_problem);
+      assertInstanceof(e, Debug.LiveEdit.Failure);
+      exceptions++;
+    }
+  });
+}
+
+function ReplaceOnce(x) {
+  if (replace_again) {
+    replace_again = false;
+    Replace(LogNewTarget, "true", "new.target");
+  }
+}
+
+function Revert() {
+  Replace(LogNewTarget, "new.target", "true");
+}
+
+replace_again = true;
+ReplaceOnce();
+new LogNewTarget();
+Revert();
+assertEquals(1, calls);
+assertEquals(0, exceptions);
+assertEquals([LogNewTarget], results);
+
+replace_again = true;
+new LogNewTarget();
+assertEquals(2, calls);  // No restarts
+assertEquals(1, exceptions);  // Replace failed.
+assertEquals([LogNewTarget, true], results);