[Patch, fortran] 99307 - FAIL: gfortran.dg/class_assign_4.f90 execution test

[dhumieres.dominique@free.fr]

Hi Paul,

I have your first patch in my working tree for some time. It works as 
expected without breaking anything in my own tests.

> I couldn't readily see how to prepare a testcase - ideas?

I think the testcase is already in the test suite.

Note the problem also affects GCC10 with a new release around the 
corner.

Thanks for your work.

Dominique