add implicit HEADERS(.) in STYLE_CPP

8c9a525df4a872daca7813c8ff82b140d749593c

build/ymake.core.conf

@@ -5821,6 +5821,7 @@ macro _CPP_STYLE(EXCLUDE[], Files...) {
 ### Run clang-format test on all cpp sources of current module
 macro STYLE_CPP() {
     SET(USE_ALL_SRCS yes)
+    HEADERS(.)
     _ADD_LINTER_CHECK(cpp_style tools/cpp_style_checker/cpp_style_checker DEPENDS contrib/libs/clang16/tools/clang-format CONFIGS build/config/tests/cpp_style/config.clang-format)
 }