support breaking change attribute for dynamic parameters (#407)

* get breaking change attribute for all parameters instead of static parameters only, in this way breaking change attribute for dynamic parameters are able to be displayed

* delete unused method

Author: VeryEarly

src/Common/CustomAttributes/BreakingChangeAttributeHelper.cs

@@ -20,6 +20,7 @@
 using System.Linq;
 using System.Management.Automation;
 using System.Reflection;
+using System.Runtime.CompilerServices;
 using System.Text;
 
 namespace Microsoft.WindowsAzure.Commands.Common.CustomAttributes
@@ -154,12 +155,12 @@ public static IEnumerable<GenericBreakingChangeWithVersionAttribute> GetAllBreak
                 attributeList.AddRange(f.GetCustomAttributes(typeof(GenericBreakingChangeWithVersionAttribute), false).Cast<GenericBreakingChangeWithVersionAttribute>());
             }
 
-            foreach (PropertyInfo p in type.GetRuntimeProperties())
+            foreach (ParameterMetadata param in invocationInfo.MyCommand.Parameters.Values)
             {
-                    attributeList.AddRange(p.GetCustomAttributes(typeof(GenericBreakingChangeWithVersionAttribute), false).Cast<GenericBreakingChangeWithVersionAttribute>());
+                attributeList.AddRange(param.Attributes.Where(a => a is GenericBreakingChangeWithVersionAttribute).Select(a => a as GenericBreakingChangeWithVersionAttribute));
             }
 
             return invocationInfo == null ? attributeList : attributeList.Where(e => e.IsApplicableToInvocation(invocationInfo));
         }
     }
-}
+}