semicolon-insertion-and-line-continuation-complementary

Summary

These two language features are two sides of the same coin: one quietly inserts a missing token where a newline would otherwise break a statement, while the other quietly removes a newline so a statement can stretch across multiple lines. Treating them as a complementary pair rather than unrelated quirks lets the system reason about them as a single design pattern — controlling how newlines interact with token flow — when comparing parsers or generating code across languages.