Export of internal Abseil changes

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5448463d79c8473d29b6aae62359eaec09e517b0 by Greg Falcon <gfalcon@google.com>:

Rename absl_types_options.h to absl_alternate_options.h, to reflect that we are testing more than just types with this file.

PiperOrigin-RevId: 289099882

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8008a5662d1b27c4ea442575405eb0538f63a636 by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 289097666

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0e9398fae540bdb7dd752245b83456f3784c50ca by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 288985613
GitOrigin-RevId: 5448463d79c8473d29b6aae62359eaec09e517b0
Change-Id: I5bc1ee156294793cacf3acbc447c0ea27ce8af4f

ci/absl_alternate_options.h

@@ -0,0 +1,28 @@
+#ifndef ABSL_BASE_OPTIONS_H_
+#define ABSL_BASE_OPTIONS_H_
+
+// Copyright 2019 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Alternate options.h file, used in continuous integration testing to exercise
+// option settings not used by default.
+
+#define ABSL_OPTION_USE_STD_ANY 0
+#define ABSL_OPTION_USE_STD_OPTIONAL 0
+#define ABSL_OPTION_USE_STD_STRING_VIEW 0
+#define ABSL_OPTION_USE_STD_VARIANT 0
+#define ABSL_OPTION_USE_INLINE_NAMESPACE 1
+#define ABSL_OPTION_INLINE_NAMESPACE_NAME ns
+
+#endif  // ABSL_BASE_OPTIONS_H_