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/include/llvm/MC/MCDirectives.h",
    "//llvm/include/llvm/MC/MCGOFFAttributes.h",
    "//llvm/include/llvm/MC/MCGOFFObjectWriter.h",
    "//llvm/include/llvm/MC/MCGOFFStreamer.h",
    "//llvm/include/llvm/MC/MCSymbolGOFF.h",
    "//llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp",
    "//llvm/lib/MC/CMakeLists.txt",
    "//llvm/lib/MC/GOFFObjectWriter.cpp",
    "//llvm/lib/MC/MCAsmInfoGOFF.cpp",
    "//llvm/lib/MC/MCAsmStreamer.cpp",
    "//llvm/lib/MC/MCELFStreamer.cpp",
    "//llvm/lib/MC/MCGOFFStreamer.cpp",
    "//llvm/lib/MC/MCMachOStreamer.cpp",
    "//llvm/lib/MC/MCSymbolGOFF.cpp",
    "//llvm/lib/Target/SystemZ/MCTargetDesc/SystemZHLASMAsmStreamer.cpp",
    "//llvm/lib/Target/SystemZ/MCTargetDesc/SystemZHLASMAsmStreamer.h",
    "//llvm/lib/Target/SystemZ/MCTargetDesc/SystemZTargetStreamer.cpp",
    "//llvm/lib/Target/SystemZ/MCTargetDesc/SystemZTargetStreamer.h",
    "//llvm/lib/Target/SystemZ/SystemZAsmPrinter.cpp",
    "//llvm/test/CodeGen/SystemZ/zos-no-eh-label.ll",
    "//llvm/test/CodeGen/SystemZ/zos-section-1.ll",
    "//llvm/test/CodeGen/SystemZ/zos-section-2.ll",
    "//llvm/test/CodeGen/SystemZ/zos-symbol-1.ll",
    "//llvm/utils/gn/secondary/llvm/lib/MC/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