gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//lldb/docs/dil-expr-lang.ebnf",
    "//lldb/include/lldb/Symbol/TypeSystem.h",
    "//lldb/include/lldb/ValueObject/DILAST.h",
    "//lldb/include/lldb/ValueObject/DILEval.h",
    "//lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
    "//lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.h",
    "//lldb/source/Symbol/CompilerType.cpp",
    "//lldb/source/Symbol/TypeSystem.cpp",
    "//lldb/source/ValueObject/DILEval.cpp",
    "//lldb/source/ValueObject/DILParser.cpp",
    "//lldb/test/API/commands/frame/var-dil/expr/Arithmetic/Makefile",
    "//lldb/test/API/commands/frame/var-dil/expr/Arithmetic/TestFrameVarDILArithmetic.py",
    "//lldb/test/API/commands/frame/var-dil/expr/Arithmetic/main.cpp",
    "//lldb/test/API/commands/frame/var-dil/expr/PointerArithmetic/Makefile",
    "//lldb/test/API/commands/frame/var-dil/expr/PointerArithmetic/TestFrameVarDILPointerArithmetic.py",
    "//lldb/test/API/commands/frame/var-dil/expr/PointerArithmetic/main.cpp",
    "//llvm/utils/gn/secondary/clang/lib/Driver/BUILD.gn",
    "//llvm/utils/gn/secondary/clang/lib/Frontend/BUILD.gn",
    "//llvm/utils/gn/secondary/llvm/lib/Target/RISCV/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": []
}