Refactor parent_type assignments to use set_chunk_parent() for logging
Add a log in set_paren_parent()
Add function set_chunk_type() to log assignments to chunk_t.type
Use set_chunk_type() instead of direct chunk_t->type assignments
Clean up the log text for set_chunk_type() and set_chunk_parent()
Mark the double-brace open/close with parent_type=CT_DOUBLE_BRACE
Pass through func/line in set_paren_parent2() and flags_parens2()
Add option nl_paren_dbrace_open
Add tests for nl_paren_dbrace_open
Fix nl_paren_dbrace_open in ')\n{{'
Add option sp_fparen_dbrace