Fix some warnings

Author: ericstj

xml/System.Collections.Frozen/FrozenDictionary.xml

@@ -77,7 +77,7 @@
         <summary>Creates a <see cref="T:System.Collections.Frozen.FrozenDictionary`2" /> with the specified key/value pairs.</summary>
         <returns>A <see cref="T:System.Collections.Frozen.FrozenDictionary`2" /> that contains the specified keys and values.</returns>
         <remarks>
-          <para>If the same key appears multiple times in the input, the latter one in the sequence takes precedence. This differs from <see cref="M:System.Linq.Enumerable.ToDictionary" />, with which multiple duplicate keys will result in an exception.</para>
+          <para>If the same key appears multiple times in the input, the latter one in the sequence takes precedence. This differs from <see cref="M:System.Linq.Enumerable.ToDictionary``2" />, with which multiple duplicate keys will result in an exception.</para>
         </remarks>
       </Docs>
     </Member>
@@ -141,7 +141,7 @@
         <summary>Creates a <see cref="T:System.Collections.Frozen.FrozenDictionary`2" /> with the specified key/value pairs.</summary>
         <returns>A <see cref="T:System.Collections.Frozen.FrozenDictionary`2" /> that contains the specified keys and values.</returns>
         <remarks>
-          <para>If the same key appears multiple times in the input, the latter one in the sequence takes precedence. This differs from <see cref="M:System.Linq.Enumerable.ToDictionary" />, with which multiple duplicate keys will result in an exception.</para>
+          <para>If the same key appears multiple times in the input, the latter one in the sequence takes precedence. This differs from <see cref="M:System.Linq.Enumerable.ToDictionary``2" />, with which multiple duplicate keys will result in an exception.</para>
         </remarks>
       </Docs>
     </Member>

xml/System.Net.WebSockets/WebSocketStream.xml

@@ -207,7 +207,7 @@
       </Parameters>
       <Docs>
         <param name="webSocket">The wrapped <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" />.</param>
-        <param name="writeMessageType">The type of messages that should be written as part of <see cref="M:Stream.WriteAsync" /> calls. Each write produces a message.</param>
+        <param name="writeMessageType">The type of messages that should be written as part of <see cref="M:System.IO.Stream.WriteAsync" /> calls. Each write produces a message.</param>
         <param name="ownsWebSocket">
           <see langword="true" /> if disposing the <see cref="T:System.IO.Stream" /> should close the underlying <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" />; otherwise, <see langword="false" />. Defaults to <see langword="false" />.</param>
         <summary>Creates a <see cref="T:System.Net.WebSockets.WebSocketStream" /> that delegates to a wrapped <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" />.</summary>
@@ -237,7 +237,7 @@
       </Parameters>
       <Docs>
         <param name="webSocket">The wrapped <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" />.</param>
-        <param name="writeMessageType">The type of messages that should be written as part of <see cref="M:Stream.WriteAsync" /> calls. Each write produces a message.</param>
+        <param name="writeMessageType">The type of messages that should be written as part of <see cref="M:System.IO.Stream.WriteAsync" /> calls. Each write produces a message.</param>
         <param name="closeTimeout">The amount of time that disposing the <see cref="T:System.Net.WebSockets.WebSocketStream" /> will wait for a graceful closing of the <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" />'s output.</param>
         <summary>Creates a <see cref="T:System.Net.WebSockets.WebSocketStream" /> that delegates to a wrapped <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" />.</summary>
         <returns>A new instance of <see cref="T:System.Net.WebSockets.WebSocketStream" /> that forwards reads and writes on the <see cref="T:System.IO.Stream" /> to the underlying <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" />.</returns>
@@ -293,7 +293,7 @@
       <Docs>
         <param name="webSocket">The wrapped <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" />.</param>
         <param name="writeMessageType">
-          <para>The type of messages that should be written as part of <see cref="M:Stream.WriteAsync" /> calls.</para>
+          <para>The type of messages that should be written as part of <see cref="M:System.IO.Stream.WriteAsync" /> calls.</para>
           <para>Each write on the <see cref="T:System.IO.Stream" /> results in writing a partial message to the underlying <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" />.</para>
           <para>When the <see cref="T:System.IO.Stream" /> is disposed, it will write an empty message to the underlying <see cref="P:System.Net.WebSockets.WebSocketStream.WebSocket" /> to signal the end of the message.</para>
         </param>

xml/System.Security.Cryptography.X509Certificates/X500DistinguishedName.xml

@@ -194,7 +194,7 @@
         <param name="encodedDistinguishedName">The encoded distinguished name.</param>
         <summary>Initializes a new instance of the <see cref="T:System.Security.Cryptography.X509Certificates.X500DistinguishedName" /> class using information from the provided data.</summary>
         <remarks>To be added.</remarks>
-        <seealso cref="M:System.Security.Cryptography.X509Certificates.X500DistinguishedName.Encode(System.String,System.Security.Cryptography.X509Certificates.X500DistinguishedNameFlags)" />
+        <seealso cref="M:System.Security.Cryptography.X509Certificates.OpenSslX509Encoder.X500DistinguishedNameEncode" />
       </Docs>
     </Member>
     <Member MemberName=".ctor">