Updated type names from `core_*` to `scc_*` across lex_parser and stream modules to maintain naming consistency within the SCC codebase. This includes changes to function signatures and internal usage of types like `core_probe_stream_t`, `core_pos_t`, and `cstring_t` to their `scc_*` counterparts.
lexer 词法分析 parse 语法分析 ast 抽象语法树 sema 语义分析 ir 中间代码标识 opt 优化器 codegen 代码生成 target 目标平台支持