Upgrade most builds to use Bazel 9.0.0

Keep one build on 8.5.1 to test WORKSPACE

Fixes the -Wdeprecated-declaration warnings
enabled by default in Bazel 9 that come from the
single-arg Invoke().

Fixes the new -Winconsistent-missing-override that
we intentionally use in a test.

Upgrades RE2 to a version compatible with Bazel 9.

PiperOrigin-RevId: 865966282
Change-Id: I5f7c3b60daf5f8a90be08004d96aaa59611e35c4

googlemock/test/gmock-function-mocker_test.cc

@@ -35,6 +35,13 @@
 // Silence C4503 (decorated name length exceeded) for MSVC.
 GTEST_DISABLE_MSC_WARNINGS_PUSH_(4503)
 
+#ifdef __clang__
+#pragma clang diagnostic push
+// This file intentionally tests many ways of writing Mock classes, including
+// with and without the override keyword.
+#pragma clang diagnostic ignored "-Winconsistent-missing-override"
+#endif
+
 #ifdef GTEST_OS_WINDOWS
 // MSDN says the header file to be included for STDMETHOD is BaseTyps.h but
 // we are getting compiler errors if we use basetyps.h, hence including

googlemock/test/gmock_link_test.h

@@ -327,7 +327,7 @@ TEST(LinkTest, TestInvoke) {
   InvokeHelper test_invoke_helper;
 
   EXPECT_CALL(mock, VoidFromString(_))
-      .WillOnce(Invoke(&InvokeHelper::StaticVoidFromString))
+      .WillOnce(&InvokeHelper::StaticVoidFromString)
       .WillOnce(Invoke(&test_invoke_helper, &InvokeHelper::VoidFromString));
   mock.VoidFromString(nullptr);
   mock.VoidFromString(nullptr);
@@ -360,7 +360,7 @@ TEST(LinkTest, TestWithArg) {
   Mock mock;
 
   EXPECT_CALL(mock, VoidFromString(_))
-      .WillOnce(WithArg<0>(Invoke(&InvokeHelper::StaticVoidFromString)));
+      .WillOnce(WithArg<0>(&InvokeHelper::StaticVoidFromString));
   mock.VoidFromString(nullptr);
 }
 
@@ -369,7 +369,7 @@ TEST(LinkTest, TestWithArgs) {
   Mock mock;
 
   EXPECT_CALL(mock, VoidFromString(_))
-      .WillOnce(WithArgs<0>(Invoke(&InvokeHelper::StaticVoidFromString)));
+      .WillOnce(WithArgs<0>(&InvokeHelper::StaticVoidFromString));
   mock.VoidFromString(nullptr);
 }