Added .Count to name part of the string

Author: egil

src/Atc.Rest.ApiGenerator/ProjectSyntaxFactories/SyntaxMethodDeclarationFactory.cs

@@ -71,7 +71,7 @@ public static MethodDeclarationSyntax CreateInterfaceMethod(string parameterType
                     if (isArray)
                     {
                         content.Add(SyntaxInterpolatedFactory.CreateNameOf(name));
-                        content.Add(SyntaxInterpolatedFactory.StringTextColon());
+                        content.Add(SyntaxInterpolatedFactory.StringText(".Count: "));
                         var countCoalesceExpression = SyntaxFactory.ParseExpression($"{name}?.Count ?? 0");
                         content.Add(SyntaxFactory.Interpolation(countCoalesceExpression));
                     }

test/Atc.Rest.ApiGenerator.Tests/SyntaxGenerators/Api/XUnitTestData/ContractModel/collectionToStringCount.verified.cs

@@ -24,7 +24,7 @@ public class TestComponent
         /// </summary>
         public override string ToString()
         {
-            return $"{nameof(Foos)}: {Foos?.Count ?? 0}, {nameof(NullableFoos)}: {NullableFoos?.Count ?? 0}";
+            return $"{nameof(Foos)}.Count: {Foos?.Count ?? 0}, {nameof(NullableFoos)}.Count: {NullableFoos?.Count ?? 0}";
         }
     }
 }

test/Atc.Rest.ApiGenerator.Tests/SyntaxGenerators/Api/XUnitTestData/ContractModel/requiredArrayComponent.verified.cs

@@ -24,7 +24,7 @@ public class RequiredArrayComponent
         /// </summary>
         public override string ToString()
         {
-            return $"{nameof(MyItems)}: {MyItems?.Count ?? 0}";
+            return $"{nameof(MyItems)}.Count: {MyItems?.Count ?? 0}";
         }
     }
 }