Fix miscounting of expected failures in C unit test API

ChangeLog

@@ -1,5 +1,9 @@
 2022-11-26  Jacob Bachmeyer  <[email protected]>
 
+	* dejagnu.h (xpass): Fix use of wrong counter.
+	(xfail): Likewise.
+	(totals): Report unexpected passes if any occurred.
+
 	* doc/dejagnu.texi (DejaGnu unit test protocol): Add end marker
 	line using "END" to allow detecting tests that exit prematurely.
 	The "Totals:" line was previously used for this purpose, but it

dejagnu.h

@@ -77,7 +77,7 @@ xpass (const char* fmt, ...)
 {
   va_list ap;
 
-  passed++;
+  xpassed++;
   va_start (ap, fmt);
   vsnprintf (buffer, sizeof (buffer), fmt, ap);
   va_end (ap);
@@ -103,7 +103,7 @@ xfail (const char* fmt, ...)
 {
   va_list ap;
 
-  failed++;
+  xfailed++;
   va_start (ap, fmt);
   vsnprintf (buffer, sizeof (buffer), fmt, ap);
   va_end (ap);
@@ -157,6 +157,8 @@ totals (void)
   printf ("\t#real failed:\t\t%d\n", failed);
   if (xfailed)
     printf ("\t#expected failures:\t\t%d\n", xfailed);
+  if (xpassed)
+    printf ("\t#unexpected passes:\t\t%d\n", xpassed);
   if (untest)
     printf ("\t#untested:\t\t%d\n", untest);
   if (unresolve)