llvm-project

34109cd2 - [flang][OpenMP] move omp end directive validation to semantics (#154739)

[flang][OpenMP] move omp end directive validation to semantics (#154739) The old parse tree errors quckly exploded to thousands of unhelpful lines when there were multiple missing end directives (e.g. #90452). Instead I've added a flag to the parse tree indicating when a missing end directive needs to be diagnosed, and moved the error messages to semantics (where they are a lot easier to control). This has the disadvantage of not displaying the error if there were other parse errors, but there is a precedent for this approach (e.g. parsing atomic constructs).