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/benchmarks/CMakeLists.txt",
    "//llvm/benchmarks/RuntimeLibcalls.cpp",
    "//llvm/include/llvm/IR/RuntimeLibcalls.h",
    "//llvm/include/llvm/Support/FileSystem.h",
    "//llvm/lib/IR/RuntimeLibcalls.cpp",
    "//llvm/lib/Object/IRSymtab.cpp",
    "//llvm/lib/Support/Unix/Path.inc",
    "//llvm/lib/Support/Windows/Path.inc",
    "//llvm/test/TableGen/RuntimeLibcallEmitter.td",
    "//llvm/unittests/IR/CMakeLists.txt",
    "//llvm/unittests/IR/RuntimeLibcallsTest.cpp",
    "//llvm/unittests/Support/Path.cpp",
    "//llvm/utils/TableGen/Basic/RuntimeLibcallsEmitter.cpp",
    "//llvm/utils/gn/secondary/llvm/unittests/IR/BUILD.gn"
  ],
  "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": []
}
running all tests due to change to blacklisted file