mv BUILD --> BUILD.bazel

PiperOrigin-RevId: 373787065
Change-Id: Ic50705bb2d63b969e939e77150e877f82c2f0c69
diff --git a/examples/test_cc_shared_library/diamond_inheritance/BUILD b/examples/test_cc_shared_library/diamond_inheritance/BUILD.bazel
similarity index 100%
rename from examples/test_cc_shared_library/diamond_inheritance/BUILD
rename to examples/test_cc_shared_library/diamond_inheritance/BUILD.bazel