[bazel] Add missing dependencies for c8a678b

Author: d0k

utils/bazel/llvm-project-overlay/llvm/unittests/BUILD.bazel

@@ -52,13 +52,15 @@ cc_test(
         "//llvm:AsmParser",
         "//llvm:CodeGen",
         "//llvm:Core",
+        "//llvm:Instrumentation",
         "//llvm:Passes",
         "//llvm:Support",
         "//llvm:TargetParser",
         "//llvm:TestingSupport",
         "//llvm:TransformUtils",
         "//llvm:attributes_gen",
         "//llvm:config",
+        "//third-party/unittest:gmock",
         "//third-party/unittest:gtest",
         "//third-party/unittest:gtest_main",
     ],