[gn build] Port 9a5c6f1

Author: llvmgnsyncbot

llvm/utils/gn/secondary/clang-tools-extra/clang-tidy/bugprone/BUILD.gn

@@ -23,6 +23,7 @@ static_library("bugprone") {
     "BoolPointerImplicitConversionCheck.cpp",
     "BranchCloneCheck.cpp",
     "BugproneTidyModule.cpp",
+    "CastingThroughVoidCheck.cpp",
     "ComparePointerToMemberVirtualFunctionCheck.cpp",
     "CopyConstructorInitCheck.cpp",
     "DanglingHandleCheck.cpp",