Update DejaGnu internal testsuite for changes to unit test protocol

ChangeLog

@@ -1,5 +1,11 @@
 2022-11-28  Jacob Bachmeyer  <jcb@gnu.org>
 
+	* testsuite/runtest.main/stats.exp: Add test for UNSUPPORTED
+	result from a unit test program.
+	* testsuite/runtest.main/nested/testsuite/stat.test/unit-sub.awk:
+	Update to account for addition of END marker and UNSUPPORTED to
+	DejaGnu unit testing protocol.
+
 	* dejagnu.h: Add UNSUPPORTED test result.
 	(unsupport): New counter variable for UNSUPPORTED results.
 	(unsupported): New function in C API.

testsuite/runtest.main/nested/testsuite/stat.test/unit-sub.awk

@@ -34,6 +34,10 @@ END {
 	print "\tUNTESTED: sample unit test"
     else if (UNIT_RESULT == "unresolved")
 	print "\tUNRESOLVED: sample unit test"
+    else if (UNIT_RESULT == "unsupported")
+	print "\tUNSUPPORTED: sample unit test"
+
+    print "\tEND: unit-sub.awk done"
 }
 
 # EOF

testsuite/runtest.main/stats.exp

@@ -41,6 +41,7 @@ set tests {
     { unit xfail "expected failures\[ \t\]+1\n" }
     { unit untested "untested testcases\[ \t\]+1\n" }
     { unit unresolved "unresolved testcases\[ \t\]+1\n" }
+    { unit unsupported "unsupported tests\[ \t\]+1\n" }
 }
 
 foreach t $tests {