Add tests and fix exports diagnostics

- Add tests for the following diagnostics: GD0101, GD0102, GD0103, GD0104, GD0105, GD0106, GD0107.
- Fix GD0101 not being reported any more (was filtering static classes before reporting).
- Fix GD0107 not preventing `Node` members from being exported from not-`Node` types.

modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators.Tests/TestData/GeneratedSources/ExportDiagnostics_GD0101_ScriptPropertyDefVal.generated.cs

@@ -0,0 +1,3 @@
+partial class ExportDiagnostics_GD0101
+{
+}

modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators.Tests/TestData/GeneratedSources/ExportDiagnostics_GD0102_ScriptPropertyDefVal.generated.cs

@@ -0,0 +1,3 @@
+partial class ExportDiagnostics_GD0102
+{
+}

modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators.Tests/TestData/GeneratedSources/ExportDiagnostics_GD0103_ScriptPropertyDefVal.generated.cs

@@ -0,0 +1,3 @@
+partial class ExportDiagnostics_GD0103
+{
+}

modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators.Tests/TestData/GeneratedSources/ExportDiagnostics_GD0104_ScriptPropertyDefVal.generated.cs

@@ -0,0 +1,3 @@
+partial class ExportDiagnostics_GD0104
+{
+}

modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators.Tests/TestData/GeneratedSources/ExportDiagnostics_GD0105_ScriptPropertyDefVal.generated.cs

@@ -0,0 +1,3 @@
+partial class ExportDiagnostics_GD0105
+{
+}

modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators.Tests/TestData/GeneratedSources/ExportDiagnostics_GD0106_KO_ScriptPropertyDefVal.generated.cs

@@ -0,0 +1,3 @@
+partial class ExportDiagnostics_GD0106_KO
+{
+}

modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators.Tests/TestData/GeneratedSources/ExportDiagnostics_GD0106_OK_ScriptPropertyDefVal.generated.cs

@@ -0,0 +1,21 @@
+partial class ExportDiagnostics_GD0106_OK
+{
+#pragma warning disable CS0109 // Disable warning about redundant 'new' keyword
+#if TOOLS
+    /// <summary>
+    /// Get the default values for all properties declared in this class.
+    /// This method is used by Godot to determine the value that will be
+    /// used by the inspector when resetting properties.
+    /// Do not call this method.
+    /// </summary>
+    [global::System.ComponentModel.EditorBrowsable(global::System.ComponentModel.EditorBrowsableState.Never)]
+    internal new static global::System.Collections.Generic.Dictionary<global::Godot.StringName, global::Godot.Variant> GetGodotPropertyDefaultValues()
+    {
+        var values = new global::System.Collections.Generic.Dictionary<global::Godot.StringName, global::Godot.Variant>(1);
+        int __MyProperty_default_value = default;
+        values.Add(PropertyName.MyProperty, global::Godot.Variant.From<int>(__MyProperty_default_value));
+        return values;
+    }
+#endif // TOOLS
+#pragma warning restore CS0109
+}

modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators.Tests/TestData/GeneratedSources/ExportDiagnostics_GD0107_KO_ScriptPropertyDefVal.generated.cs

@@ -0,0 +1,3 @@
+partial class ExportDiagnostics_GD0107_KO
+{
+}

modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators.Tests/TestData/GeneratedSources/ExportDiagnostics_GD0107_OK_ScriptPropertyDefVal.generated.cs

@@ -0,0 +1,23 @@
+partial class ExportDiagnostics_GD0107_OK
+{
+#pragma warning disable CS0109 // Disable warning about redundant 'new' keyword
+#if TOOLS
+    /// <summary>
+    /// Get the default values for all properties declared in this class.
+    /// This method is used by Godot to determine the value that will be
+    /// used by the inspector when resetting properties.
+    /// Do not call this method.
+    /// </summary>
+    [global::System.ComponentModel.EditorBrowsable(global::System.ComponentModel.EditorBrowsableState.Never)]
+    internal new static global::System.Collections.Generic.Dictionary<global::Godot.StringName, global::Godot.Variant> GetGodotPropertyDefaultValues()
+    {
+        var values = new global::System.Collections.Generic.Dictionary<global::Godot.StringName, global::Godot.Variant>(2);
+        global::Godot.Node __NodeProperty_default_value = default;
+        values.Add(PropertyName.NodeProperty, global::Godot.Variant.From<global::Godot.Node>(__NodeProperty_default_value));
+        global::Godot.Node __NodeField_default_value = default;
+        values.Add(PropertyName.NodeField, global::Godot.Variant.From<global::Godot.Node>(__NodeField_default_value));
+        return values;
+    }
+#endif // TOOLS
+#pragma warning restore CS0109
+}