Fixed build errors for c++ test basics. Added a ForAll thingy to abstract around making symbols. Shortened section name lengths. Added a simple arithmetic properties test case.

examples/ArithmeticProperties.cpp

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2017 Trail of Bits, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <mctest/Quantified.hpp>
+
+using namespace mctest;
+
+__attribute__((noinline))
+int add(int x, int y) {
+  return x + y;
+}
+
+McTest_EntryPoint(AdditionIsCommutative) {
+  ForAll<int, int>([] (int x, int y) {
+    McTest_Assert(add(x, y) == add(y, x));
+  });
+}