[Patch, fortran] [11/21] Remove coarray support in the scalarizer: Support 0-rank loop in gfc_conv_ss_startstride

[Mikael Morin]

We are going to remove the gfc_loopinfo::codimen field.
The following assertion in gfc_conv_ss_startstride:
  gcc_assert (loop->dimen + loop->codimen != 0);
is going to fail for scalar coarrays when updated to
  gcc_assert (loop->dimen != 0);

However, gfc_conv_expr_descriptor, requires (if we don't want to rewrite it
completely) that the expression's gfc_ss struct passes through the scalarizer
(in the scalar coarray case, it will do nothing but get the descriptor).

This patch changes the assertion so that zero rank loops are accepted.

OK?

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2011-09-14  Mikael Morin  <mikael.morin@sfr.fr>

	* trans-array.c (gfc_conv_ss_startstride): Support zero rank loop.
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