[testsuite] gcc-dg: handle all return values when shouldfail is set

2016-04-22  Christophe Lyon  <christophe.lyon@linaro.org>

	* lib/gcc-dg.exp (${tool}_load): Add default return value handler.

From-SVN: r235372

gcc/testsuite/ChangeLog

+2016-04-22  Christophe Lyon  <christophe.lyon@linaro.org>
+
+	* lib/gcc-dg.exp (${tool}_load): Add default return value handler.
+
 2016-04-22  Dominique d'Humieres  <dominiq@lps.ens.fr>
 
 	* gfortran.dg/submodule_14.f08: Add cleanup-submodules.

gcc/testsuite/lib/gcc-dg.exp

@@ -403,6 +403,7 @@ if { [info procs ${tool}_load] != [list] \
 	    switch [lindex $result 0] {
 		"pass" { set status "fail" }
 		"fail" { set status "pass" }
+		default { set status [lindex $result 0] }
 	    }
 	    set result [list $status [lindex $result 1]]
 	}