gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/MC/AArch64/directives-case_insensitive.s",
    "//llvm/test/MC/AArch64/reloc-directive-err.s",
    "//llvm/test/MC/AArch64/reloc-directive.s",
    "//llvm/test/MC/AMDGPU/reloc-directive.s",
    "//llvm/test/MC/ARM/reloc-directive-err.s",
    "//llvm/test/MC/ARM/reloc-directive.s",
    "//llvm/test/MC/AVR/reloc-directive-err.s",
    "//llvm/test/MC/AVR/reloc-directive.s",
    "//llvm/test/MC/LoongArch/Relocations/reloc-directive-err.s",
    "//llvm/test/MC/LoongArch/Relocations/reloc-directive.s",
    "//llvm/test/MC/Mips/reloc-directive-bad.s",
    "//llvm/test/MC/Mips/reloc-directive.s",
    "//llvm/test/MC/PowerPC/ppc32-reloc-directive.s",
    "//llvm/test/MC/PowerPC/ppc64-reloc-directive.s",
    "//llvm/test/MC/RISCV/reloc-directive-err.s",
    "//llvm/test/MC/RISCV/reloc-directive.s",
    "//llvm/test/MC/Sparc/Relocations/reloc-directive.s",
    "//llvm/test/MC/SystemZ/reloc-directive.s",
    "//llvm/test/MC/X86/reloc-directive-elf-32.s",
    "//llvm/test/MC/X86/reloc-directive-elf-64.s",
    "//llvm/test/MC/X86/reloc-directive.s"
  ],
  "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": []
}