Remove some leftover cruft from check-if-stmt.h too. Original-commit: flang-compiler/f18@5c150289a9 Reviewed-on: https://github.com/flang-compiler/f18/pull/356
added no value. Change several error messages to better say what is expected. Adjust tests for new messages. Reformat with llvm7 clang-format. Original-commit: flang-compiler/f18@706b506e26 Reviewed-on: https://github.com/flang-compiler/f18/pull/356 Tree-same-pre-rewrite: false
arithmetic ifs. Original-commit: flang-compiler/f18@deb2726aad Reviewed-on: https://github.com/flang-compiler/f18/pull/356 Tree-same-pre-rewrite: false