gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/MC/Sparc/Directives/data.s",
    "//llvm/test/MC/Sparc/Misc/elf-feature.s",
    "//llvm/test/MC/Sparc/Misc/elf-machine-type.s",
    "//llvm/test/MC/Sparc/Misc/little-endian.s",
    "//llvm/test/MC/Sparc/Relocations/expr.s",
    "//llvm/test/MC/Sparc/Relocations/reloc-directive.s",
    "//llvm/test/MC/Sparc/Relocations/relocation-specifier-pic.s",
    "//llvm/test/MC/Sparc/Relocations/relocation-specifier.s",
    "//llvm/test/MC/Sparc/Relocations/relocation.s",
    "//llvm/test/MC/Sparc/sparc-fixups.s",
    "//llvm/test/MC/Sparc/sparc-relocations.s"
  ],
  "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": []
}