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/AsmParser/LLParser.cpp",
    "//llvm/lib/Bitcode/Reader/MetadataLoader.cpp",
    "//llvm/lib/Bitcode/Writer/BitcodeWriter.cpp",
    "//llvm/lib/IR/AsmWriter.cpp",
    "//llvm/test/Assembler/dicompileunit-invalid-language-version.ll",
    "//llvm/test/Bitcode/Inputs/compile-unit-no-versioned-language.bc",
    "//llvm/test/Bitcode/dwarf-source-language-version.ll",
    "//llvm/test/Bitcode/upgrade-DICompileUnit-no-versioned-language.test"
  ],
  "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": []
}