Add compile checks to EndToEndNativeInputTest

While trying to reproduce a test failure, I added thread safety
annotations to double check the current logic.

It will be useful to have this going forward if there's indeed
expectation that the input team helps out with these test failures.

In file BLASTBufferQueue_test, there are a bunch of thread safety and
signed comparison compilation errors, so disable them locally to work
around this. The test owners can choose to fix those separately if
desired.

Unfortunately the test failure is currently not reproducible locally.

Bug: 331747627
Test: TEST=libgui_test; m $TEST && adb sync && adb shell -t /data/nativetest64/$TEST/$TEST --gtest_filter="*uncropped_container_replaces_touchable_region_with_null_crop" --gtest_repeat=1000 --gtest_break_on_failure
Change-Id: I65943d3204b43f1c03488d669767cd8388b558ee