gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libcxxabi/src/demangle/cp-to-llvm.sh",
    "//libcxxabi/test/DemangleTestCases.inc",
    "//libcxxabi/test/test_demangle.pass.cpp",
    "//llvm/include/llvm/Testing/Demangle/DemangleTestCases.inc",
    "//llvm/include/llvm/Testing/Demangle/README.txt",
    "//mlir/include/mlir/IR/OperationSupport.h",
    "//mlir/lib/IR/OperationSupport.cpp",
    "//mlir/unittests/IR/OperationSupportTest.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": []
}
running all tests due to change to blacklisted file