Fix doc comment warnings.

Author: rstam

src/MongoDB.Bson/ObjectModel/Decimal128.cs

@@ -627,9 +627,9 @@ public static ulong GetSignificandLowBits(Decimal128 d)
         /// <summary>
         /// Gets a value indicating whether this instance is zero.
         /// </summary>
-        /// <value>
+        /// <returns>
         ///   <c>true</c> if this instance is zero; otherwise, <c>false</c>.
-        /// </value>
+        /// </returns>
         public static bool IsZero(Decimal128 d)
         {
             if (Flags.IsFirstForm(d._highBits) && GetSignificand(d).Equals(UInt128.Zero))

src/MongoDB.Driver.Core/Collation.cs

@@ -461,7 +461,7 @@ public override string ToString()
         /// <param name="maxVariable">The new maximum variable.</param>
         /// <param name="normalization">The new normalization.</param>
         /// <param name="backwards">The new backwards.</param>
-        /// <returns></returns>
+        /// <returns>A new Collation instance.</returns>
         public Collation With(
             Optional<string> locale = default(Optional<string>),
             Optional<bool?> caseLevel = default(Optional<bool?>),

src/MongoDB.Driver.Core/Core/Misc/CommandsThatWriteAcceptWriteConcernFeature.cs

@@ -36,6 +36,7 @@ public CommandsThatWriteAcceptWriteConcernFeature(string name, SemanticVersion f
         /// </summary>
         /// <param name="serverVersion">The server version.</param>
         /// <param name="value">The write concern value.</param>
+        /// <returns>Whether the write concern should be sent to the server.</returns>
         public bool ShouldSendWriteConcern(SemanticVersion serverVersion, WriteConcern value)
         {
             return value != null && !value.IsServerDefault && base.IsSupported(serverVersion);

src/MongoDB.Driver.Core/ReadPreference.cs

@@ -240,6 +240,7 @@ public ReadPreference With(IEnumerable<TagSet> tagSets)
         /// <summary>
         /// Returns a new instance of ReadPreference with some values changed.
         /// </summary>
+        /// <param name="maxStaleness">The maximum staleness.</param>
         /// <returns>A new instance of ReadPreference.</returns>
         public ReadPreference With(TimeSpan? maxStaleness)
         {

src/MongoDB.Driver.Legacy/MongoDatabase.cs

@@ -296,7 +296,7 @@ public virtual CommandResult CreateCollection(string collectionName, IMongoColle
         /// <param name="viewOn">The name of the collection that the view is on.</param>
         /// <param name="pipeline">The pipeline.</param>
         /// <param name="options">The options.</param>
-        /// <returns></returns>
+        /// <returns>A CommandResult.</returns>
         public virtual CommandResult CreateView(string viewName, string viewOn, IEnumerable<BsonDocument> pipeline, IMongoCreateViewOptions options)
         {
             if (viewName == null)

src/MongoDB.Driver/AggregateBucketOptions.cs

@@ -18,6 +18,7 @@ namespace MongoDB.Driver
     /// <summary>
     /// Represents options for the Bucket method.
     /// </summary>
+    /// <typeparam name="TValue">The type of the value.</typeparam>
     public class AggregateBucketOptions<TValue>
     {
         /// <summary>

src/MongoDB.Driver/AggregateFacetResult.cs

@@ -41,6 +41,8 @@ internal AggregateFacetResult(string name)
         /// <summary>
         /// Gets the output of the facet.
         /// </summary>
+        /// <typeparam name="TOutput">The type of the output documents.</typeparam>
+        /// <returns>The output of the facet.</returns>
         public IReadOnlyList<TOutput> Output<TOutput>()
         {
             return ((AggregateFacetResult<TOutput>)this).Output;

src/MongoDB.Driver/AggregateSortByCountResult.cs

@@ -20,6 +20,7 @@ namespace MongoDB.Driver
     /// <summary>
     /// Result type for the aggregate $sortByCount stage.
     /// </summary>
+    /// <typeparam name="TId">The type of the identifier.</typeparam>
     public sealed class AggregateSortByCountResult<TId>
     {
         private long _count;

src/MongoDB.Driver/CreateViewOptions.cs

@@ -20,6 +20,7 @@ namespace MongoDB.Driver
     /// <summary>
     /// Options for creating a view.
     /// </summary>
+    /// <typeparam name="TDocument">The type of the documents.</typeparam>
     public class CreateViewOptions<TDocument>
     {
         // fields

src/MongoDB.Driver/IAggregateFluent.cs

@@ -299,7 +299,7 @@ public interface IOrderedAggregateFluent<TResult> : IAggregateFluent<TResult>
         /// Combines the current sort definition with an additional sort definition.
         /// </summary>
         /// <param name="newSort">The new sort.</param>
-        /// The fluent aggregate interface.
+        /// <returns>The fluent aggregate interface.</returns>
         IOrderedAggregateFluent<TResult> ThenBy(SortDefinition<TResult> newSort);
     }
 }