gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//flang/lib/Optimizer/Transforms/DebugTypeGenerator.cpp",
    "//flang/test/Integration/debug-complex-1.f90",
    "//flang/test/Integration/debug-local-var-2.f90",
    "//flang/test/Transforms/debug-complex-1.fir",
    "//flang/test/Transforms/debug-derived-type-1.fir",
    "//flang/test/Transforms/debug-fn-info.fir",
    "//flang/test/Transforms/debug-local-var.fir",
    "//flang/test/Transforms/debug-ref-type.fir",
    "//flang/test/Transforms/debug-tuple-type.fir",
    "//flang/test/Transforms/debug-vector-type.fir",
    "//llvm/test/Instrumentation/MemorySanitizer/LoongArch/vararg-loongarch64.ll",
    "//llvm/test/Instrumentation/MemorySanitizer/Mips/vararg-mips64.ll",
    "//llvm/test/Instrumentation/MemorySanitizer/Mips/vararg-mips64el.ll",
    "//llvm/test/Instrumentation/MemorySanitizer/PowerPC/vararg-ppc64.ll",
    "//llvm/test/Instrumentation/MemorySanitizer/PowerPC/vararg-ppc64le.ll",
    "//llvm/utils/gn/secondary/bolt/lib/Core/BUILD.gn",
    "//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",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}