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",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//clang/lib/AST/ByteCode/Compiler.cpp",
    "//clang/lib/AST/ByteCode/Interp.cpp",
    "//clang/test/AST/ByteCode/c.c",
    "//clang/test/AST/ByteCode/cxx11.cpp",
    "//flang/lib/Optimizer/Transforms/SimplifyFIROperations.cpp",
    "//flang/test/Transforms/do-concurrent-localizer-boxchar.fir",
    "//llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}