exception: Add ignoreQuiet functionality

Change-Id: I596c658f5e933645f7ba871cf50a69dc735365ab
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/test/exception.cpp b/test/exception.cpp
index 6b4a26f..5d22071 100644
--- a/test/exception.cpp
+++ b/test/exception.cpp
@@ -19,5 +19,11 @@
                      std::move(y)));
 }
 
+TEST(Exception, IgnoreQuiet)
+{
+    ignoreQuiet([] {})();
+    ignoreQuiet([]() mutable { throw std::runtime_error("Boom"); })();
+}
+
 } // namespace exception
 } // namespace stdplus