Started sanity test suite (Non-parsed api)

Made some fixes based on errors found while iterating on first generation

test/gen/sanity.gen.hpp

@@ -0,0 +1,12 @@
+// Sanity check: def_omment test
+
+class Test_EmptyClass;
+class Test_EmptyClass
+{
+	// Empty class
+};
+
+
+UFUNCTION( BlueprintCallable, Category = "Test" )
+void Test_UFunction(void);
+