[js weak refs] Disable incremental marking for harmony/weakrefs tests

These tests rely on dropping references to objects either explicitly ("o =
null;") or implicitly ("o goes out of scope") and then doing gc. It's essential
that we haven't already marked the WeakCell pointing to o and marked it alive
before dropping the reference.

BUG=v8:8179

Change-Id: Ie0b73f05c4baa937cf6f28325454ff9087a71a2c
Reviewed-on: https://chromium-review.googlesource.com/c/1306437Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57115}

test/mjsunit/harmony/weakrefs/cleanup-doesnt-iterate-all-cells.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup = function(iter) {

test/mjsunit/harmony/weakrefs/cleanup-from-different-realm.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let r = Realm.create();
 

test/mjsunit/harmony/weakrefs/cleanup-is-a-microtask.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 // This test asserts that the cleanup function call, scheduled by GC, is a
 // microtask and not a normal task.

test/mjsunit/harmony/weakrefs/cleanup-proxy-from-different-realm.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let r = Realm.create();
 

test/mjsunit/harmony/weakrefs/clear-after-cleanup.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup_weak_cell_count = 0;

test/mjsunit/harmony/weakrefs/clear-before-cleanup.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup = function(iter) {

test/mjsunit/harmony/weakrefs/clear-called-twice.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup = function(iter) {

test/mjsunit/harmony/weakrefs/clear-clears-factory-pointer.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 // Test that WeakCell.prototype.clear() also clears the WeakFactory pointer of
 // WeakCell. The only way to observe this is to assert that the WeakCell no

test/mjsunit/harmony/weakrefs/clear-inside-cleanup1.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup_weak_cell_count = 0;

test/mjsunit/harmony/weakrefs/clear-inside-cleanup2.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup_weak_cell_count = 0;

test/mjsunit/harmony/weakrefs/clear-inside-cleanup3.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup_weak_cell_count = 0;

test/mjsunit/harmony/weakrefs/clear-inside-cleanup4.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup_weak_cell_count = 0;

test/mjsunit/harmony/weakrefs/clear-when-cleanup-already-scheduled.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup = function(iter) {

test/mjsunit/harmony/weakrefs/factory-scheduled-for-cleanup-multiple-times.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup0_call_count = 0;
 let cleanup0_weak_cell_count = 0;

test/mjsunit/harmony/weakrefs/iterating-weak-cells.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_called = false;
 let cleanup = function(iter) {

test/mjsunit/harmony/weakrefs/multiple-dirty-weak-factories.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_call_count = 0;
 let cleanup_weak_cell_count = 0;

test/mjsunit/harmony/weakrefs/weak-cell-basics.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_called = false;
 let cleanup = function(iter) {

test/mjsunit/harmony/weakrefs/weak-factory-keeps-weak-cells-alive.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: --harmony-weak-refs --expose-gc
+// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
 
 let cleanup_called = false;
 let cleanup = function(iter) {