Address some naming issues (via disabling the syntax check)

Author: rgesteve

src/Microsoft.ML.XGBoost/WrappedXGBoostInterface.cs

@@ -88,11 +88,13 @@ public static extern int XGBoosterPredict(IntPtr bHandle, IntPtr dHandle,
         #endregion
 
         #region API serialization
+#pragma warning disable MSML_ParameterLocalVarName
         [DllImport(DllName)]
         public static extern int XGBoosterDumpModel(IntPtr handle, string fmap, int with_stats, out int out_len, out IntPtr dumpStr);
 
         [DllImport(DllName)]
         public static extern int XGBoosterDumpModelEx(IntPtr handle, string fmap, int with_stats, string format, out int out_len, out IntPtr dumpStr);
+#pragma warning restore MSML_ParameterLocalVarName
         #endregion
 
     }

src/Microsoft.ML.XGBoost/WrappedXGBooster.cs

@@ -32,13 +32,12 @@ namespace Microsoft.ML.Trainers.XGBoost
     /// </summary>
     internal class Booster : IDisposable
     {
-
+#pragma warning disable MSML_PrivateFieldName // Private field name not in: _camelCase format
         private bool disposed;
         private readonly IntPtr _handle;
         private const int normalPrediction = 0; // Value for the optionMask in prediction
-#pragma warning disable CS0414
         private int numClass = 1;
-#pragma warning restore CS0414
+#pragma warning restore MSML_PrivateFieldName
 
         public IntPtr Handle => _handle;
 
@@ -179,8 +178,9 @@ public void SetParameter(string name, string val)
         }
 
         #region Create Models
-
+#pragma warning disable MSML_ParameterLocalVarName
         public string[] DumpModelEx(string fmap, int with_stats, string format)
+#pragma warning restore MSML_ParameterLocalVarName
         {
             int length;
             IntPtr treePtr;
@@ -233,10 +233,12 @@ public void GetModel()
 
         private class TablePopulator
         {
+#pragma warning disable MSML_GeneralName
             public Dictionary<int, List<JsonElement>> dict = new();
             public Dictionary<string, int> nodes = new();
             public Dictionary<string, string> lte = new();
             public Dictionary<string, string> gt = new();
+#pragma warning restore MSML_GeneralName
 
             public TablePopulator(JsonElement elm)
             {

src/Microsoft.ML.XGBoost/WrappedXGDMatrix.cs

@@ -12,14 +12,19 @@ namespace Microsoft.ML.Trainers.XGBoost
     /// </summary>
     internal sealed class DMatrix : IDisposable
     {
+#pragma warning disable MSML_PrivateFieldName
         private bool disposed = false;
+#pragma warning restore MSML_PrivateFieldName
+#pragma warning disable IDE0044
         private IntPtr _handle;
+#pragma warning restore IDE0044
         public IntPtr Handle => _handle;
         private const float Missing = 0f;
 
         /// <summary>
         /// Create a <see cref="DMatrix"/> for storing training and prediction data under XGBoost framework.
         /// </summary>
+#nullable enable
         public unsafe DMatrix(float[] data, uint nrows, uint ncols, float[]? labels = null)
         {
             int errp = WrappedXGBoostInterface.XGDMatrixCreateFromMat(data, nrows, ncols, Missing, out _handle);
@@ -35,6 +40,7 @@ public unsafe DMatrix(float[] data, uint nrows, uint ncols, float[]? labels = nu
             }
 
         }
+#nullable disable
 
         public ulong GetNumRows()
         {

src/Microsoft.ML.XGBoost/XGBoostInterface.cs

@@ -39,7 +39,9 @@ public struct XGBoostVersion
 
         public static XGBoostVersion Version()
         {
-            int major, minor, patch;
+            int major;
+            int minor;
+            int patch;
             WrappedXGBoostInterface.XGBoostVersion(out major, out minor, out patch);
             return new XGBoostVersion
             {