gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//flang/include/flang/Parser/tools.h",
    "//flang/include/flang/Semantics/tools.h",
    "//flang/lib/Lower/Bridge.cpp",
    "//flang/lib/Lower/OpenACC.cpp",
    "//flang/lib/Lower/OpenMP/OpenMP.cpp",
    "//flang/lib/Parser/tools.cpp",
    "//flang/lib/Semantics/check-acc-structure.cpp",
    "//flang/lib/Semantics/check-omp-loop.cpp",
    "//flang/lib/Semantics/check-omp-structure.cpp",
    "//flang/lib/Semantics/resolve-directives.cpp",
    "//flang/lib/Semantics/resolve-names.cpp",
    "//llvm/include/llvm/CAS/OnDiskDataAllocator.h",
    "//llvm/include/llvm/CAS/OnDiskGraphDB.h",
    "//llvm/include/llvm/CAS/OnDiskKeyValueDB.h",
    "//llvm/lib/CAS/CMakeLists.txt",
    "//llvm/lib/CAS/OnDiskCommon.cpp",
    "//llvm/lib/CAS/OnDiskCommon.h",
    "//llvm/lib/CAS/OnDiskDataAllocator.cpp",
    "//llvm/lib/CAS/OnDiskGraphDB.cpp",
    "//llvm/lib/CAS/OnDiskKeyValueDB.cpp",
    "//llvm/unittests/CAS/CASTestConfig.cpp",
    "//llvm/unittests/CAS/CASTestConfig.h",
    "//llvm/unittests/CAS/CMakeLists.txt",
    "//llvm/unittests/CAS/OnDiskCommonUtils.h",
    "//llvm/unittests/CAS/OnDiskGraphDBTest.cpp",
    "//llvm/unittests/CAS/OnDiskKeyValueDBTest.cpp",
    "//llvm/utils/gn/secondary/llvm/lib/CAS/BUILD.gn",
    "//llvm/utils/gn/secondary/llvm/unittests/CAS/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