args rename and rebase fix

Author: artidoro

src/Microsoft.ML.Transforms/MissingValueIndicatorTransformer.cs

@@ -90,8 +90,8 @@ internal MissingValueIndicatorTransformer(IHostEnvironment env, params (string o
         {
         }
 
-        internal MissingValueIndicatorTransformer(IHostEnvironment env, Options args)
-            : base(Contracts.CheckRef(env, nameof(env)).Register(nameof(MissingValueIndicatorTransformer)), GetColumnPairs(args.Columns))
+        internal MissingValueIndicatorTransformer(IHostEnvironment env, Options options)
+            : base(Contracts.CheckRef(env, nameof(env)).Register(nameof(MissingValueIndicatorTransformer)), GetColumnPairs(options.Columns))
         {
         }
 
@@ -114,8 +114,8 @@ internal static MissingValueIndicatorTransformer Create(IHostEnvironment env, Mo
         }
 
         // Factory method for SignatureDataTransform.
-        internal static IDataTransform Create(IHostEnvironment env, Options args, IDataView input)
-            => new MissingValueIndicatorTransformer(env, args).MakeDataTransform(input);
+        internal static IDataTransform Create(IHostEnvironment env, Options options, IDataView input)
+            => new MissingValueIndicatorTransformer(env, options).MakeDataTransform(input);
 
         // Factory method for SignatureLoadDataTransform.
         internal static IDataTransform Create(IHostEnvironment env, ModelLoadContext ctx, IDataView input)

src/Microsoft.ML.Transforms/MissingValueReplacing.cs

@@ -433,7 +433,7 @@ internal static IDataTransform Create(IHostEnvironment env, Options options, IDa
             env.CheckValue(input, nameof(input));
 
             env.CheckValue(options.Columns, nameof(options.Columns));
-            var cols = new ColumnInfo[options.Columns.Length];
+            var cols = new MissingValueReplacingEstimator.ColumnInfo[options.Columns.Length];
             for (int i = 0; i < cols.Length; i++)
             {
                 var item = options.Columns[i];