llvm-project

3c5d2575 - [flang][parser] handle semicolons uniformly in program unit constructs (#181180)

[flang][parser] handle semicolons uniformly in program unit constructs (#181180) Modifies the parser so that a semicolon is a valid separator between programming unit statements, and tweaks how leading semicolons and spaces are parsed so that they don't count for progress toward programming unit parsing. Also adds some tests that document the behavior of what works before and after the update. fixes [#176994](https://github.com/llvm/llvm-project/issues/176994)