Fix nodiscard warning in variant annotator test

[ChiahongHong]

This PR updates the VariantAnnotatorTest death test to explicitly discard the annotate() return value with static_cast<void>. The test only verifies the assertion failure for mismatched argument counts, so the returned VariantAnnotator::CombinedResult is intentionally unused. This keeps the test behavior unchanged while removing the compiler warning for the [[nodiscard]] return value.

PS. the formatting differs from the surrounding context because it is produced by clang-format.

Warning

[ 63%] Building CXX object CMakeFiles/McBopomofoLMLibTest.dir/VariantAnnotatorTest.cpp.o
/Users/chiahong/Documents/McBopomofo/Source/Engine/VariantAnnotatorTest.cpp:140:17: warning: ignoring return value of function
      declared with 'nodiscard' attribute [-Wunused-result]
  140 |   EXPECT_DEATH((annotator->annotate({"個", "人", "一", "個", "人", "一", "個"},
      |                 ^~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  141 |                                     {"ㄍㄜˋ", "ㄖㄣˊ"})),
      |                                     ~~~~~~~~~~~~~~~~~~
/Users/chiahong/Documents/McBopomofo/Source/Engine/build/_deps/googletest-src/googletest/include/gtest/gtest-death-test.h:190:15: note:
      expanded from macro 'EXPECT_DEATH'
  190 |   EXPECT_EXIT(statement, ::testing::internal::ExitedUnsuccessfully, matcher)
      |               ^~~~~~~~~
/Users/chiahong/Documents/McBopomofo/Source/Engine/build/_deps/googletest-src/googletest/include/gtest/gtest-death-test.h:179:21: note:
      expanded from macro 'EXPECT_EXIT'
  179 |   GTEST_DEATH_TEST_(statement, predicate, matcher, GTEST_NONFATAL_FAILURE_)
      |                     ^~~~~~~~~
/Users/chiahong/Documents/McBopomofo/Source/Engine/build/_deps/googletest-src/googletest/include/gtest/internal/gtest-death-test-internal.h:243:47: note:
      expanded from macro 'GTEST_DEATH_TEST_'
  243 |           GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, gtest_dt);            \
      |                                               ^~~~~~~~~
/Users/chiahong/Documents/McBopomofo/Source/Engine/build/_deps/googletest-src/googletest/include/gtest/internal/gtest-death-test-internal.h:200:52: note:
      expanded from macro 'GTEST_EXECUTE_DEATH_TEST_STATEMENT_'
  200 |     GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement);               \
      |                                                    ^~~~~~~~~
/Users/chiahong/Documents/McBopomofo/Source/Engine/build/_deps/googletest-src/googletest/include/gtest/internal/gtest-internal.h:1354:5: note:
      expanded from macro 'GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_'
 1354 |     statement;                                                    \
      |     ^~~~~~~~~
1 warning generated.

[gemini-code-assist]

Code Review

This pull request updates a unit test in VariantAnnotatorTest.cpp by casting the result of the annotate function to void within an EXPECT_DEATH macro. This change is likely intended to suppress compiler warnings related to unused return values. I have no feedback to provide as there are no review comments.

[lukhnos]

LGTM. Thanks!