gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//mlir/include/mlir/Dialect/PDL/IR/PDLOps.td",
    "//mlir/include/mlir/Dialect/PDLInterp/IR/PDLInterpOps.td",
    "//mlir/include/mlir/IR/PDLPatternMatch.h.inc",
    "//mlir/lib/Conversion/PDLToPDLInterp/PDLToPDLInterp.cpp",
    "//mlir/lib/Conversion/PDLToPDLInterp/Predicate.h",
    "//mlir/lib/Conversion/PDLToPDLInterp/PredicateTree.cpp",
    "//mlir/lib/Dialect/PDL/IR/PDL.cpp",
    "//mlir/lib/Rewrite/ByteCode.cpp",
    "//mlir/lib/Tools/PDLL/Parser/Parser.cpp",
    "//mlir/test/Conversion/PDLToPDLInterp/pdl-to-pdl-interp-matcher.mlir",
    "//mlir/test/Conversion/PDLToPDLInterp/use-constraint-result.mlir",
    "//mlir/test/Dialect/PDL/ops.mlir",
    "//mlir/test/Rewrite/pdl-bytecode.mlir",
    "//mlir/test/lib/Dialect/Transform/TestTransformDialectExtension.cpp",
    "//mlir/test/lib/Rewrite/TestPDLByteCode.cpp",
    "//mlir/test/mlir-pdll/Parser/constraint-failure.pdll",
    "//mlir/test/mlir-pdll/Parser/constraint.pdll",
    "//mlir/test/python/dialects/pdl_ops.py"
  ],
  "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": []
}