gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//lldb/test/tsan-suppressions.txt",
    "//llvm/test/tools/llvm-readobj/ELF/call-graph-info.test",
    "//llvm/tools/llvm-readobj/ELFDumper.cpp",
    "//mlir/include/mlir/Remark/RemarkStreamer.h",
    "//mlir/lib/Remark/CMakeLists.txt",
    "//mlir/lib/Remark/RemarkStreamer.cpp",
    "//mlir/test/Pass/remark-output-error.mlir",
    "//mlir/unittests/IR/RemarkTest.cpp",
    "//utils/bazel/llvm-project-overlay/mlir/BUILD.bazel"
  ],
  "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": []
}