message: Allow to instrument blocks w/o source block
diff: @@ -527,7 +527,7 @@ void InstrumentPass::bind_config() {
  // 0 means the block tracing is effectively method-only tracing.
  bind("max_num_blocks", 0, m_options.max_num_blocks);
  bind("instrument_catches", false, m_options.instrument_catches);
  - bind("instrument_blocks_without_source_block", false,
  + bind("instrument_blocks_without_source_block", true,
  m_options.instrument_blocks_without_source_block);
  bind("instrument_only_root_store", false,
  m_options.instrument_only_root_store);
  