gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//llvm/lib/Bitcode/Reader/BitcodeReader.cpp",
    "//llvm/lib/IR/BasicBlock.cpp",
    "//llvm/lib/IR/Verifier.cpp",
    "//llvm/lib/Transforms/Utils/InlineFunction.cpp",
    "//llvm/test/Bitcode/musttail-bitcast-upgrade.ll",
    "//llvm/test/Bitcode/musttail-bitcast-upgrade.ll.bc",
    "//llvm/test/Instrumentation/AddressSanitizer/musttail.ll",
    "//llvm/test/Instrumentation/ThreadSanitizer/tsan_musttail.ll",
    "//llvm/test/Transforms/CallSiteSplitting/musttail.ll",
    "//llvm/test/Transforms/SafeStack/X86/musttail.ll",
    "//llvm/test/Verifier/musttail-invalid.ll"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}