deps: patch V8 to 9.3.345.19

Refs: v8/v8@9.3.345.16...9.3.345.19
PR-URL: #40108
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Author: targos

deps/v8/include/v8-version.h

@@ -11,7 +11,7 @@
 #defineV8_MAJOR_VERSION 9
 #defineV8_MINOR_VERSION 3
 #defineV8_BUILD_NUMBER 345
-#defineV8_PATCH_LEVEL16
+#defineV8_PATCH_LEVEL19
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

deps/v8/src/compiler/js-native-context-specialization.cc

@@ -825,6 +825,12 @@ Reduction JSNativeContextSpecialization::ReduceGlobalAccess(
 returnNoChange();
  } elseif (property_cell_type == PropertyCellType::kUndefined) {
 returnNoChange();
+ } elseif (property_cell_type == PropertyCellType::kConstantType) {
+// We rely on stability further below.
+if (property_cell_value.IsHeapObject() &&
+ !property_cell_value.AsHeapObject().map().is_stable()) {
+returnNoChange();
+ }
  }
  } elseif (access_mode == AccessMode::kHas) {
 DCHECK_EQ(receiver, lookup_start_object);
@@ -943,17 +949,7 @@ Reduction JSNativeContextSpecialization::ReduceGlobalAccess(
 if (property_cell_value.IsHeapObject()) {
  MapRef property_cell_value_map =
  property_cell_value.AsHeapObject().map();
-if (property_cell_value_map.is_stable()) {
-dependencies()->DependOnStableMap(property_cell_value_map);
- } else {
-// The value's map is already unstable. If this store were to go
-// through the C++ runtime, it would transition the PropertyCell to
-// kMutable. We don't want to change the cell type from generated
-// code (to simplify concurrent heap access), however, so we keep
-// it as kConstantType and do the store anyways (if the new value's
-// map matches). This is safe because it merely prolongs the limbo
-// state that we are in already.
- }
+dependencies()->DependOnStableMap(property_cell_value_map);
 
 // Check that the {value} is a HeapObject.
  value = effect = graph()->NewNode(simplified()->CheckHeapObject(),

deps/v8/testing/gmock/BUILD.gn

@@ -15,12 +15,7 @@ source_set("gmock") {
 "include/gmock/gmock-matchers.h",
 "include/gmock/gmock.h",
  ]
-deps= [ "//third_party/googletest:gmock" ]
-
-public_configs= [
-"//third_party/googletest:gmock_config",
-"//third_party/googletest:gtest_config",
- ]
+public_deps= [ "//third_party/googletest:gmock" ]
 }
 
 # The file/directory layout of Google Test is not yet considered stable. Until

deps/v8/tools/mb/mb.py

@@ -53,6 +53,25 @@ def cmp(x, y): # pylint: disable=redefined-builtin
 return (x>y) - (x<y)
 
 
+def_v8_builder_fallback(builder, builder_group):
+"""Fallback to V8 builder names before splitting builder/tester.
+
+ This eases splitting builders and testers on release branches and
+ can be removed as soon as all builder have been split and all MB configs
+ exist on all branches.
+ """
+builders= [builder]
+ifbuilder.endswith(' - builder'):
+builders.append(builder[:-len(' - builder')])
+elifbuilder.endswith(' builder'):
+builders.append(builder[:-len(' builder')])
+
+forbuilderinbuilders:
+ifbuilderinbuilder_group:
+returnbuilder_group[builder]
+returnNone
+
+
 defmain(args):
 mbw=MetaBuildWrapper()
 returnmbw.Main(args)
@@ -651,12 +670,14 @@ def ConfigFromArgs(self):
 raiseMBErr('Builder groups name "%s" not found in "%s"'%
  (self.args.builder_group, self.args.config_file))
 
-ifnotself.args.builderinself.builder_groups[self.args.builder_group]:
+config=_v8_builder_fallback(
+self.args.builder, self.builder_groups[self.args.builder_group])
+
+ifnotconfig:
 raiseMBErr(
 'Builder name "%s" not found under builder_groups[%s] in "%s"'%
  (self.args.builder, self.args.builder_group, self.args.config_file))
 
-config=self.builder_groups[self.args.builder_group][self.args.builder]
 ifisinstance(config, dict):
 ifself.args.phaseisNone:
 raiseMBErr('Must specify a build --phase for %s on %s'%