Adds a test related to the fix #625

[weslleyspereira]

This PR adds a test related to the fix #625.

The test:

• Verifies if xLARRV returns INFO=0 when (N.EQ.0).OR.(M.EQ.0).
• Verifies if xLARRV modifies its outputs when (N.EQ.0).OR.(M.EQ.0).

The problem related on #625 was the out-of-bounds access IBLOCK( 0 ). To try to stress this problem does not happen anymore, I set IWORK(1) = 100 and use the array IWORK(2) as IBLOCK.

• [ ] For now, the test was implemented only SLARRV. If the test makes sense, implement it on DLARRV, CLARRV and ZLARRV.

[codecov[bot]]

Codecov Report

Base: 0.00% // Head: 0.00% // No change to project coverage :thumbsup:

Coverage data is based on head (6195fab) compared to base (def1271). Patch has no changes to coverable lines.

:exclamation: Current head 6195fab differs from pull request most recent head 351f5ac. Consider uploading reports for the commit 351f5ac to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #664   +/-   ##
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  Coverage    0.00%    0.00%           
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  Files        1894     1894           
  Lines      184054   184054           
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  Misses     184054   184054           

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