gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//flang/docs/ParserCombinators.md",
    "//flang/lib/Parser/executable-parsers.cpp",
    "//flang/lib/Parser/program-parsers.cpp",
    "//flang/lib/Parser/stmt-parser.h",
    "//flang/test/Parser/at-process.f",
    "//flang/test/Parser/come-to-a-bad-end.f90",
    "//flang/test/Parser/unparseable.f90"
  ],
  "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