Land rapid7#8979, Add missing payload specs

Author: wwebb-r7

spec/modules/payloads_spec.rb

@@ -2929,6 +2929,17 @@
                           reference_name: 'windows/meterpreter/reverse_ipv6_tcp'
   end
 
+  context 'windows/meterpreter/reverse_named_pipe' do
+    it_should_behave_like 'payload cached size is consistent',
+                          ancestor_reference_names: [
+                              'stagers/windows/reverse_named_pipe',
+                              'stages/windows/meterpreter'
+                          ],
+                          dynamic_size: false,
+                          modules_pathname: modules_pathname,
+                          reference_name: 'windows/meterpreter/reverse_named_pipe'
+  end
+
   context 'windows/meterpreter/reverse_nonx_tcp' do
     it_should_behave_like 'payload cached size is consistent',
                           ancestor_reference_names: [
@@ -3888,6 +3899,17 @@
                           reference_name: 'windows/x64/meterpreter/reverse_https'
   end
 
+  context 'windows/x64/meterpreter/reverse_named_pipe' do
+    it_should_behave_like 'payload cached size is consistent',
+                          ancestor_reference_names: [
+                              'stagers/windows/x64/reverse_named_pipe',
+                              'stages/windows/x64/meterpreter'
+                          ],
+                          dynamic_size: false,
+                          modules_pathname: modules_pathname,
+                          reference_name: 'windows/x64/meterpreter/reverse_named_pipe'
+  end
+
   context 'windows/x64/meterpreter/reverse_tcp' do
     it_should_behave_like 'payload cached size is consistent',
                           ancestor_reference_names: [