In commit 695f0d0d we created keyword-specific variants of
USE WORD other EOSTMT production, such as
MODULE WORD other EOSTMT and
INTERFACE WORD other EOSTMT. The same
pattern was used by more keyword-specific productions in !91 (merged).
The postfix part (
other) of several keyword-specific productions is
not needed to match Fortran syntax. See the Fortran 2018 standard,
para.4.1.4/1 on p.28, para.14.2.1/2 on pp.293-294. The postfix is
needed only for a case of operator 'use':
use <module-name> [, only : <list-of-vars>]
The unnecessary postfix matching from the keyword-specific productions such as module, submodule, and interface declarations can cause spurious module dependencies to be detected, so remove it.
Extend the test suite with examples covering the previously-broken cases.
Fixes: #18427 (closed)