$ lpython a.py
Internal Compiler Error: Unhandled exception
Traceback (most recent call last):
  File "/Users/ondrej/repos/lpython/src/bin/lpython.cpp", line 1685
    err = compile_python_to_object_file(arg_file, tmp_o, runtime_library_dir,
  File "/Users/ondrej/repos/lpython/src/bin/lpython.cpp", line 703
    res = fe.get_llvm3(*asr, pass_manager, diagnostics, infile);
  File "/Users/ondrej/repos/lpython/src/lpython/python_evaluator.cpp", line 58
    run_fn, infile);
  File "/Users/ondrej/repos/lpython/src/libasr/codegen/asr_to_llvm.cpp", line 7025
    pass_manager.apply_passes(al, &asr, pass_options, diagnostics);
  File "/Users/ondrej/repos/lpython/src/libasr/pass/pass_manager.h", line 213
    _apply_passes(al, asr, _passes, pass_options, diagnostics);
  File "/Users/ondrej/repos/lpython/src/libasr/pass/pass_manager.h", line 104
    _passes_db[passes[i]](al, *asr, pass_options);
  File "/Users/ondrej/repos/lpython/src/libasr/pass/arr_slice.cpp", line 220
    ArraySectionVisitor v(al);
  File "../libasr/asr.h", line 39209
  File "../libasr/asr.h", line 4480
  File "../libasr/asr.h", line 4219
  File "../libasr/asr.h", line 39227
  File "../libasr/asr.h", line 4480
  File "../libasr/asr.h", line 4220
  File "../libasr/asr.h", line 39247
  File "/Users/ondrej/repos/lpython/src/libasr/pass/arr_slice.cpp", line 195
    visit_stmt(*m_body[i]);
  File "../libasr/asr.h", line 4495
  File "../libasr/asr.h", line 4241
  File "/Users/ondrej/repos/lpython/src/libasr/pass/arr_slice.cpp", line 207
    current_expr = const_cast<ASR::expr_t**>(&(x.m_value));
  File "/Users/ondrej/repos/lpython/src/libasr/pass/arr_slice.cpp", line 187
    replacer.replace_expr(*current_expr);
  File "../libasr/asr.h", line 38554
  File "/Users/ondrej/repos/lpython/src/libasr/pass/arr_slice.cpp", line 159
    int a_kind = ASRUtils::extract_kind_from_ttype_t(ASRUtils::expr_type(idx_vars_target[0]));
  File "../libasr/asr_utils.h", line 108
  File "../libasr/asr.h", line 41878