[Fortran-dev, patch, committed] Minor fixes

[Tobias Burnus]

I have committed a fix for one link issue (spurious 
GFC_DESCRIPTOR_STRIDE_BYTES which escaped the renaming to 
GFC_DESCRIPTOR_SM) - and changed "data" to "base_addr" for consistency. 
Rev. 185216.

Additionally, I modified some tree-dump patterns for the extent and for 
the base_addr change.

Result: 192 FAIL lines in 23 test-suite files of which 3 also exist on 
the trunk.


At some point, the extent calculation should be updated. Dumps like the 
following hurt, even if -O1 handles* them:
(((D.1871->dim[0].lower_bound + D.1871->dim[0].extent) + -1) - 
D.1871->dim[0].lower_bound) + 1.
[* maybe -fstrict-overflow and/or -fno-protect-parens is required in 
addition]


Regarding transpose_optimization_2.f90: Here,
     atmp.58.dim[0].lbound = 0;
     atmp.58.dim[0].ubound = 2;
is replaced by
     atmp.58.dim[0].lower_bound = 0;
     atmp.58.dim[0].extent = 3 - atmp.58.dim[0].lower_bound;
which increased the number of "atmp" by 2 (for two dims). Also something 
which could be solved in the front end as both lbound and ubound are 
known at compile time.

Tobias
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