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",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//libcxx/src/std_stream.h",
    "//libcxx/test/libcxx/input.output/iostream.objects/cin-read-stdio-sync.sh.cpp",
    "//llvm/test/TableGen/RegisterInfoEmitter-noncovered-subreg-lanemask.td",
    "//llvm/utils/TableGen/Common/CodeGenRegisters.cpp",
    "//mlir/lib/Conversion/MemRefToSPIRV/MemRefToSPIRV.cpp",
    "//mlir/test/Conversion/MemRefToSPIRV/atomic.mlir"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}
running all tests due to change to blacklisted file