#6313: Added test case for oppositeInnerCondition.

test/testcondition.cpp

@@ -1292,6 +1292,16 @@ private:
               "}");
         ASSERT_EQUALS("", errout.str());
 
+        // #6313 - false postive: opposite conditions in nested if blocks when condition changed
+        check("void Foo::Bar() {\n"
+              "   if(var){\n"
+              "      --var;\n"
+              "      if(!var){}\n"
+              "      else {}\n"
+              "   }\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
+
         // #5874 - array
         check("void testOppositeConditions2() {\n"
               "  int array[2] = { 0, 0 };\n"