Add AssemblyName to all model VersionInfo instances.

Also fix a couple more tests.

Author: eerhardt

src/Microsoft.ML.Api/SerializableLambdaTransform.cs

@@ -29,7 +29,8 @@ public static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010001,
                 verReadableCur: 0x00010001,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: LoaderSignature);
+                loaderSignature: LoaderSignature,
+                loaderAssemblyName: typeof(SerializableLambdaTransform).Assembly.FullName);
         }
 
         public const string LoaderSignature = "UserLambdaMapTransform";

src/Microsoft.ML.Data/DataLoadSave/Binary/BinaryLoader.cs

@@ -772,7 +772,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010003, // Number of blocks to put in the shuffle pool
                 verReadableCur: 0x00010003,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: LoaderSignature);
+                loaderSignature: LoaderSignature,
+                loaderAssemblyName: typeof(BinaryLoader).Assembly.FullName);
         }
 
         private BinaryLoader(Arguments args, IHost host, Stream stream, bool leaveOpen)

src/Microsoft.ML.Data/DataLoadSave/CompositeDataLoader.cs

@@ -71,7 +71,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010002, // Added transform tags and args strings
                 verReadableCur: 0x00010002,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: LoaderSignature);
+                loaderSignature: LoaderSignature,
+                loaderAssemblyName: typeof(CompositeDataLoader).Assembly.FullName);
         }
 
         // The composition of loader plus transforms in order.

src/Microsoft.ML.Data/DataLoadSave/PartitionedFileLoader.cs

@@ -60,7 +60,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010001, // Initial
                 verReadableCur: 0x00010001,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: LoadName);
+                loaderSignature: LoadName,
+                loaderAssemblyName: typeof(PartitionedFileLoader).Assembly.FullName);
         }
 
         public class Arguments

src/Microsoft.ML.Data/DataLoadSave/PartitionedPathParser.cs

@@ -91,7 +91,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010001, // Initial
                 verReadableCur: 0x00010001,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: LoadName);
+                loaderSignature: LoadName,
+                loaderAssemblyName: typeof(SimplePartitionedPathParser).Assembly.FullName);
         }
 
         private IHost _host;
@@ -214,7 +215,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010001, // Initial
                 verReadableCur: 0x00010001,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: LoadName);
+                loaderSignature: LoadName,
+                loaderAssemblyName: typeof(ParquetPartitionedPathParser).Assembly.FullName);
         }
 
         public ParquetPartitionedPathParser()

src/Microsoft.ML.Data/DataLoadSave/Text/TextLoader.cs

@@ -960,7 +960,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x0001000B, // Header now retained if used and present
                 verReadableCur: 0x0001000A,
                 verWeCanReadBack: 0x00010009,
-                loaderSignature: LoaderSignature);
+                loaderSignature: LoaderSignature,
+                loaderAssemblyName: typeof(TextLoader).Assembly.FullName);
         }
 
         /// <summary>

src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs

@@ -55,7 +55,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010001, // Initial
                 verReadableCur: 0x00010001,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: TransformerChain.LoaderSignature);
+                loaderSignature: TransformerChain.LoaderSignature,
+                loaderAssemblyName: typeof(TransformerChain<>).Assembly.FullName);
         }
 
         /// <summary>

src/Microsoft.ML.Data/DataLoadSave/Transpose/TransposeLoader.cs

@@ -354,7 +354,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010001, // Initial
                 verReadableCur: 0x00010001,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: LoadName);
+                loaderSignature: LoadName,
+                loaderAssemblyName: typeof(TransposeLoader).Assembly.FullName);
         }
 
         // We return the schema view's schema, because we don't necessarily want

src/Microsoft.ML.Data/DataView/RowToRowMapperTransform.cs

@@ -241,7 +241,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010001, // Initial
                 verReadableCur: 0x00010001,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: LoaderSignature);
+                loaderSignature: LoaderSignature,
+                loaderAssemblyName: typeof(RowToRowMapperTransform).Assembly.FullName);
         }
 
         public override ISchema Schema { get { return _bindings; } }

src/Microsoft.ML.Data/Depricated/Instances/HeaderSchema.cs

@@ -222,7 +222,8 @@ private static VersionInfo GetVersionInfo()
                 verWrittenCur: 0x00010001, // Initial
                 verReadableCur: 0x00010001,
                 verWeCanReadBack: 0x00010001,
-                loaderSignature: LoaderSignature);
+                loaderSignature: LoaderSignature,
+                loaderAssemblyName: typeof(FeatureNameCollection).Assembly.FullName);
         }
 
         public static void Save(ModelSaveContext ctx, ref VBuffer<DvText> names)