Loc AddParameter and label the textboxes for accessibility

src/VisualStudio/Core/Def/Implementation/ChangeSignature/AddParameterDialog.xaml

@@ -5,7 +5,7 @@
     x:ClassModifier="internal"         
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:vs="clr-namespace:Microsoft.VisualStudio.PlatformUI;assembly=Microsoft.VisualStudio.Shell.15.0" xmlns:changesignature="clr-namespace:Microsoft.VisualStudio.LanguageServices.Implementation.ChangeSignature"
+    xmlns:vs="clr-namespace:Microsoft.VisualStudio.PlatformUI;assembly=Microsoft.VisualStudio.Shell.15.0"
     Height="256" Width="500"
     MinHeight="256" MinWidth="500"
     Title="{Binding ElementName=dialog, Path=AddParameterDialogTitle}"
@@ -32,16 +32,16 @@
                 <RowDefinition Height="Auto"/>
                 <RowDefinition Height="Auto"/>
             </Grid.RowDefinitions>
-            <Label Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="2" Padding="0,5,0,5" Content="Type name:" />
+            <Label x:Name="TypeNameLabel" Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="2" Padding="0,5,0,5" Content="{Binding ElementName=dialog, Path=TypeNameLabel}" />
             <Border Grid.Row="1" Grid.Column="1" BorderThickness="1" BorderBrush="LightGray" Margin="0,5,0,5">
-                <ContentControl x:Name="TypeContentControl" Focusable="False" Margin="0,0,0,0" PreviewKeyDown="TypeNameContentControl_PreviewKeyDown"/>
+                <ContentControl x:Name="TypeContentControl" Focusable="False" Margin="0,0,0,0" PreviewKeyDown="TypeNameContentControl_PreviewKeyDown" AutomationProperties.LabeledBy="{Binding ElementName=TypeNameLabel}"/>
             </Border>
-            <Label Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2" Padding="0,5,0,5" Content="Parameter name:" />
+            <Label x:Name="ParameterNameLabel" Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2" Padding="0,5,0,5" Content="{Binding ElementName=dialog, Path=ParameterNameLabel}" />
             <Border Grid.Row="3" Grid.Column="1" BorderThickness="1" BorderBrush="LightGray" Margin="0,5,0,5">
-                <ContentControl x:Name="NameContentControl" Height="16" Focusable="False" Margin="0,0,0,0" PreviewKeyDown="TypeNameContentControl_PreviewKeyDown"/>
+                <ContentControl x:Name="NameContentControl" Height="16" Focusable="False" Margin="0,0,0,0" PreviewKeyDown="TypeNameContentControl_PreviewKeyDown" AutomationProperties.LabeledBy="{Binding ElementName=ParameterNameLabel}"/>
             </Border>
-            <Label Grid.Row="4" Grid.Column="0" Grid.ColumnSpan="2"  Padding="0,5,0,5" Content="Value to insert at callsites:" />
-            <TextBox Grid.Row="5" Grid.Column="1" Text="{Binding CallsiteValue, Mode=TwoWay}"  Margin="0,5,0,5" />
+            <Label x:Name="CallsiteValueLabel" Grid.Row="4" Grid.Column="0" Grid.ColumnSpan="2"  Padding="0,5,0,5" Content="{Binding ElementName=dialog, Path=CallsiteValueLabel}" />
+            <TextBox Grid.Row="5" Grid.Column="1" Text="{Binding CallsiteValue, Mode=TwoWay}"  Margin="0,5,0,5" AutomationProperties.LabeledBy="{Binding ElementName=CallsiteValueLabel}" />
         </Grid>
         <StackPanel Grid.Row="1"
                     HorizontalAlignment="Right"