Avoid a few warnings from MSVC

Author: gennaroprota

src/dom/value.cpp

@@ -719,13 +719,13 @@ stringify(
         Array::size_type n = arr.size();
         for(std::size_t i = 0; i < n; ++i)
         {
-            dom::Value value = arr.get(i);
-            if (value.isUndefined() || value.isFunction())
+            dom::Value v = arr.get(i);
+            if (v.isUndefined() || v.isFunction())
             {
                 continue;
             }
             dest.append(indent);
-            stringify(dest, value, indent, visited);
+            stringify(dest, v, indent, visited);
             if(i != n - 1)
             {
                 dest.push_back(',');

src/test_suite/test_suite.cpp

@@ -487,7 +487,7 @@ int run(std::ostream& out)
 
 // Simple main used to produce standalone
 // executables that run unit tests.
-int unit_test_main(int argc, char const* const* argv)
+int unit_test_main(int /*argc*/, char const* const* /*argv*/)
 {
 #if 0
 #if defined(_MSC_VER) && !defined(__clang__)

test/handlebars.cpp

@@ -3897,7 +3897,7 @@ helpers()
     // pathed lambas with parameters
     {
         dom::Object hash;
-        dom::Function helper = dom::makeInvocable([](dom::Value const& arg) {
+        dom::Function helper = dom::makeInvocable([](dom::Value const&) {
             return dom::Value("winning");
         });
         hash.set("helper", helper);
@@ -4491,7 +4491,7 @@ helpers()
         // should take precedence over helper values
         {
             std::string string = "{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{value}}";
-            hbs.registerHelper("value", [](dom::Value const& options) {
+            hbs.registerHelper("value", [](dom::Value const&) {
                 return "foo";
             });
             hbs.registerHelper("goodbyes", [](dom::Value const& options) {
@@ -4702,8 +4702,8 @@ track_ids()
         hbs.registerHelper("wycats", [](
             dom::Value const& passiveVoice,
             dom::Value const& noun,
-            dom::Value const& thiz,
-            dom::Value const& thiz2,
+            dom::Value const& /*thiz*/,
+            dom::Value const& /*thiz2*/,
             dom::Value const& options) {
             BOOST_TEST(options.get("ids").get(0) == "is.a");
             BOOST_TEST(options.get("ids").get(1) == "../slave.driver");
@@ -4802,7 +4802,7 @@ track_ids()
         hbs.registerHelper("wycats", [](
             dom::Value const& passiveVoice,
             dom::Value const& noun,
-            dom::Value const& blah,
+            dom::Value const& /*blah*/,
             dom::Value const& options)
         {
             BOOST_TEST(options.get("ids").get(0) == "zomg.a");