Most of these checks were already implemented, and I just added references to
them to the code and tests. Also, much of this code was already
reviewed in the old flang/f18 GitHub repository, but I didn't get to
merge it before we switched repositories.
I implemented the check for C747 to not allow coarray components in derived
types that are of type C_PTR, C_FUNPTR, or type TEAM_TYPE.
I implemented the check for C748 that requires a data component whose type has
a coarray ultimate component to be a nonpointer, nonallocatable scalar and not
be a coarray.
I implemented the check for C750 that adds additional restrictions to the
bounds expressions of a derived type component that's an array. C750 prohibits
specification functions, the intrinsic functions ALLOCATED, ASSOCIATED,
EXTENDS_TYPE_OF, PRESENT, and SAME_TYPE_AS. It also requires every
specification inquiry reference to be a constant expression, and requires that
the value of the bound not depend on the value of a variable.
I changed the implementation of IsPureProcedure() to handle statement functions
and changed some references in the code that tested for the PURE attribute to
I also fixed some unrelated tests that got new errors when I implemented these