[patch, fortran] PR36355: fix matmul argument type checking

[Daniel Franke]

This patch fixes an issue with MATMUL argument checking. Although pre-approved 
for trunk by Thomas Koenig, I'll wait for 48 hours before committing.


2008-12-09  Daniel Franke  <franke.daniel@gmail.com>

	* PR fortran/36355
	* check.c (gfc_check_matmul): Fixed error message for invalid types to
	correctly identify the offending argument, added check for mismatching types.

2008-12-09  Daniel Franke  <franke.daniel@gmail.com>

	* PR fortran/36355
	* gfortran.dg/matmul_argument_types.f90: New.


Regression tested on i686-pc-linux-gnu.

Regards

	Daniel

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