skip remainder of one test file if on Solaris

[eddelbuettel]

Skip exceptions tests after line 55 just like Windows does

• Code compiles correctly
• R CMD check still passes all tests
• Prefereably, new tests were added which fail without the change
• Document the changes by file in ChangeLog

[kevinushey]

LGTM! I was writing exactly this code in a separate local branch as well :-)

[codecov-io]

Codecov Report

Merging #1065 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1065   +/-   ##
=======================================
  Coverage   95.61%   95.61%           
=======================================
  Files          64       64           
  Lines        2782     2782           
=======================================
  Hits         2660     2660           
  Misses        122      122