Simplified generated filenames

Adding the type name of the generator is not necessary since Visual Studio already groups generated sources for each individual generator, which also automatically avoids conflicts

Author: Sergio0694

Microsoft.Toolkit.Mvvm.SourceGenerators/ComponentModel/ObservablePropertyGenerator.cs

@@ -148,7 +148,7 @@ private static void OnExecuteForProperties(
                 .ToFullString();
 
             // Add the partial type
-            context.AddSource($"[ObservablePropertyAttribute]_[{classDeclarationSymbol.GetFullMetadataNameForFileName()}].cs", SourceText.From(source, Encoding.UTF8));
+            context.AddSource($"{classDeclarationSymbol.GetFullMetadataNameForFileName()}.cs", SourceText.From(source, Encoding.UTF8));
         }
 
         /// <summary>
@@ -528,7 +528,7 @@ public void OnExecuteForPropertyArgs(GeneratorExecutionContext context, IReadOnl
                 .ToFullString();
 
             // Add the partial type
-            context.AddSource($"[ObservablePropertyAttribute]_[__KnownINotifyPropertyChangedOrChangingArgs].cs", SourceText.From(source, Encoding.UTF8));
+            context.AddSource("__KnownINotifyPropertyChangedOrChangingArgs.cs", SourceText.From(source, Encoding.UTF8));
         }
 
         /// <summary>

Microsoft.Toolkit.Mvvm.SourceGenerators/ComponentModel/ObservableValidatorValidateAllPropertiesGenerator.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
@@ -154,7 +154,7 @@ public void Execute(GeneratorExecutionContext context)
                 classAttributes = Array.Empty<AttributeListSyntax>();
 
                 // Add the partial type
-                context.AddSource($"[ObservableValidator]_[{classSymbol.GetFullMetadataNameForFileName()}].cs", SourceText.From(source, Encoding.UTF8));
+                context.AddSource($"{classSymbol.GetFullMetadataNameForFileName()}.cs", SourceText.From(source, Encoding.UTF8));
             }
         }
 

Microsoft.Toolkit.Mvvm.SourceGenerators/ComponentModel/TransitiveMembersGenerator.cs

@@ -183,7 +183,7 @@ private void OnExecute(
                 .ToFullString();
 
             // Add the partial type
-            context.AddSource($"[{this.attributeTypeName}]_[{classDeclarationSymbol.GetFullMetadataNameForFileName()}].cs", SourceText.From(source, Encoding.UTF8));
+            context.AddSource($"{classDeclarationSymbol.GetFullMetadataNameForFileName()}.cs", SourceText.From(source, Encoding.UTF8));
         }
 
         /// <summary>

Microsoft.Toolkit.Mvvm.SourceGenerators/Input/ICommandGenerator.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
@@ -114,7 +114,7 @@ private static void OnExecute(
                 .ToFullString();
 
             // Add the partial type
-            context.AddSource($"[ICommandAttribute]_[{classDeclarationSymbol.GetFullMetadataNameForFileName()}].cs", SourceText.From(source, Encoding.UTF8));
+            context.AddSource($"{classDeclarationSymbol.GetFullMetadataNameForFileName()}.cs", SourceText.From(source, Encoding.UTF8));
         }
 
         /// <summary>

Microsoft.Toolkit.Mvvm.SourceGenerators/Messaging/IMessengerRegisterAllGenerator.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
@@ -209,7 +209,7 @@ public void Execute(GeneratorExecutionContext context)
                 classAttributes = Array.Empty<AttributeListSyntax>();
 
                 // Add the partial type
-                context.AddSource($"[IRecipient{{T}}]_[{classSymbol.GetFullMetadataNameForFileName()}].cs", SourceText.From(source, Encoding.UTF8));
+                context.AddSource($"{classSymbol.GetFullMetadataNameForFileName()}.cs", SourceText.From(source, Encoding.UTF8));
             }
         }