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",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//flang/lib/Optimizer/Transforms/AddDebugInfo.cpp",
    "//llvm/lib/Target/X86/X86ISelLowering.cpp",
    "//llvm/test/CodeGen/ARM/2009-10-02-NEONSubregsBug.ll",
    "//llvm/test/CodeGen/ARM/2012-04-10-DAGCombine.ll",
    "//llvm/test/CodeGen/ARM/fnmul.ll",
    "//llvm/test/CodeGen/ARM/fp16-vminmaxnm.ll",
    "//llvm/test/CodeGen/ARM/fp16.ll",
    "//llvm/test/CodeGen/ARM/sincos.ll",
    "//llvm/test/CodeGen/ARM/vminmaxnm.ll",
    "//llvm/test/CodeGen/X86/vector-shuffle-combining-avx.ll",
    "//llvm/test/CodeGen/X86/vector-shuffle-combining-avx2.ll",
    "//llvm/test/CodeGen/X86/vector-shuffle-combining-sse41.ll",
    "//mlir/include/mlir-c/Dialect/LLVM.h",
    "//mlir/include/mlir/Dialect/LLVMIR/LLVMAttrDefs.td",
    "//mlir/lib/CAPI/Dialect/LLVM.cpp",
    "//mlir/lib/Target/LLVMIR/DebugImporter.cpp",
    "//mlir/lib/Target/LLVMIR/DebugTranslation.cpp",
    "//mlir/test/CAPI/llvm.c",
    "//mlir/test/Target/LLVMIR/Import/debug-info.ll",
    "//mlir/test/Target/LLVMIR/llvmir-debug.mlir"
  ],
  "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": []
}