Removed Ofp* from AssignmentStmt, End/SubroutineStmt, and ContainsStmt.
Uncommented TODO-F08 (PURE SUBROUTINE) test.
Initial version.
Removed Ofp* transformations for several more statements (e.g., Module, Function, MpSubprogramStmt.
Simplifications to StmtFunctionStmt, ReturnStmt, FunctionStmt, ModuleSubprogramPart, and LanguageBindingName