Mark !mayfail tests as skipped in the JUnit reporter

Should fix #2116

tests/SelfTest/UsageTests/Condition.tests.cpp

@@ -86,6 +86,19 @@ TEST_CASE( "Equality checks that should fail", "[.][failing][!mayfail]" )
     CHECK( x == Approx( 1.301 ) );
 }
 
+// Needed to test junit reporter's handling of mayfail test cases and sections
+TEST_CASE("Mayfail test case with nested sections", "[!mayfail]") {
+    SECTION("A") {
+        SECTION("1") { FAIL(); }
+        SECTION("2") { FAIL(); }
+    }
+    SECTION("B") {
+        SECTION("1") { FAIL(); }
+        SECTION("2") { FAIL(); }
+    }
+}
+
+
 TEST_CASE( "Inequality checks that should succeed" )
 {
     TestData data;