gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//clang/test/Driver/aarch64-mcpu.c",
    "//clang/test/Driver/print-enabled-extensions/aarch64-grace.c",
    "//llvm/lib/Target/AArch64/AArch64Processors.td",
    "//llvm/test/CodeGen/AArch64/cpus.ll",
    "//llvm/unittests/TargetParser/TargetParserTest.cpp"
  ],
  "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