Update debug flags to avoid using the Program Database.

Author: cmtice

.ci/monolithic-windows.sh

@@ -79,6 +79,7 @@ cmake -S "${MONOREPO_ROOT}"/llvm -B "${BUILD_DIR}" \
       -D CMAKE_EXE_LINKER_FLAGS="/MANIFEST:NO" \
       -D CMAKE_MODULE_LINKER_FLAGS="/MANIFEST:NO" \
       -D CMAKE_SHARED_LINKER_FLAGS="/MANIFEST:NO" \
+      -D CMAKE_CXX_FLAGS_DEBUG=" /Z7 /Ob0 /Od /RTC1" \
       -D LLVM_ENABLE_RUNTIMES="${runtimes}"
 
 #      -D COMPILER_SUPPORTS_WARNING_WEAK_VTABLES=OFF \