[StyleCleanUp] Use compound assignment (IDE0054) (#10620)

* [StyleCleanUp] Use compound assignment (IDE0054)

* Removed redundant braces

Author: jizc

src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/Ink/InkSerializedFormat/SerializationHelper.cs

@@ -188,7 +188,7 @@ public static uint SignDecode(Stream strm, out int i)
                 if ((ull & 0x0001) > 0)
                     fneg = true;
 
-                ull = ull >> 1;
+                ull >>= 1;
 
                 long l = (long)ull;
 

src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/Ink/StrokeNode.cs

@@ -1058,7 +1058,7 @@ internal Point GetPointAt(double findex)
             // eg turn 2.75 into .75
             //
             double floor = Math.Floor(findex);
-            findex = findex - floor;
+            findex -= floor;
 
             double xDiff = (_thisNode.Position.X - _lastNode.Position.X) * findex;
             double yDiff = (_thisNode.Position.Y - _lastNode.Position.Y) * findex;

src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/Media/XamlSerializationHelper.cs

@@ -349,7 +349,7 @@ internal static double ReadDouble( BinaryReader reader )
         internal static double ReadScaledInteger(BinaryReader reader )
         {
             double value = (double) reader.ReadInt32(); 
-            value = value * inverseScaleFactor ; 
+            value *= inverseScaleFactor ; 
 
             return value ; 
         }

src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/Media3D/GeneralTransform2DTo3DTo2D.cs

@@ -293,7 +293,7 @@ private List<HitTestEdge> GrabValidEdges(Point[] visualTexCoordBounds)
 
                 // in this case we have a non-indexed mesh
                 int count = positions.Count;
-                count = count - (count % 3);
+                count -= (count % 3);
 
                 for (int i = 0; i < count; i+=3)
                 {

src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/Media3D/LineUtil.cs

@@ -458,9 +458,9 @@ internal static bool ComputeLineTriangleIntersection(
             double t = Vector3D.DotProduct(ref e2, ref q);
             double f = 1 / a;
 
-            t = t * f;
-            u = u * f;
-            v = v * f;
+            t *= f;
+            u *= f;
+            v *= f;
 
             hitCoord = new Point(u, v);
             dist = t;

src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/TextFormatting/Bidi.cs

@@ -2081,7 +2081,7 @@ out int                 cchResolved         // number of char resolved
                     lastStrongClass = tempClass;
                 }
 
-                counter = counter + wordCount;
+                counter += wordCount;
             }
 
             if (counter < cchText)  // couldn't optimize.

src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/TextFormatting/FormatSettings.cs

@@ -166,7 +166,7 @@ internal int GetFiniteFormatWidth(int paragraphWidth)
             // indent is part of our text line but not of LS line
             // paragraph width == 0 means format width is unlimited
             int formatWidth = (paragraphWidth <= 0 ? Constants.IdealInfiniteWidth : paragraphWidth);
-            formatWidth = formatWidth - _pap.ParagraphIndent;
+            formatWidth -= _pap.ParagraphIndent;
 
             // sanitize the format width value before passing to LS
             formatWidth = Math.Max(formatWidth, 0);

src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/TextFormatting/LineServicesCallbacks.cs

@@ -1315,7 +1315,7 @@ private Rect DrawTextDecoration(
                             );
 
                         // adjust the pen's thickness as it will be scaled back by the scale transform
-                        drawingPenThickness = drawingPenThickness / Math.Abs(unitValue);
+                        drawingPenThickness /= Math.Abs(unitValue);
 
                         // applied transforms
                         drawingContext.PushTransform(scaleTransform);

src/Microsoft.DotNet.Wpf/src/PresentationCore/System/Windows/Automation/Peers/AutomationPeer.cs

@@ -2024,7 +2024,7 @@ internal void UpdateSubtree()
             ContextLayoutManager lm = ContextLayoutManager.From(this.Dispatcher);
             if(lm != null)
             {
-                lm.AutomationSyncUpdateCounter = lm.AutomationSyncUpdateCounter + 1;
+                lm.AutomationSyncUpdateCounter += 1;
 
                 try
                 {
@@ -2107,7 +2107,7 @@ internal void UpdateSubtree()
                 }
                 finally
                 {
-                    lm.AutomationSyncUpdateCounter = lm.AutomationSyncUpdateCounter - 1;
+                    lm.AutomationSyncUpdateCounter -= 1;
                 }
             }
         }

src/Microsoft.DotNet.Wpf/src/PresentationCore/System/Windows/Ink/Stroke.cs

@@ -890,11 +890,11 @@ private Stroke Copy(StylusPointCollection sourceStylusPoints, double beginFIndex
             //
             if (!DoubleUtil.AreClose(beginFIndex, StrokeFIndices.BeforeFirst))
             {
-                beginFIndex = beginFIndex - beginIndex;
+                beginFIndex -= beginIndex;
             }
             if (!DoubleUtil.AreClose(endFIndex, StrokeFIndices.AfterLast))
             {
-                endFIndex = endFIndex - beginIndex;
+                endFIndex -= beginIndex;
             }
 
             if (stylusPoints.Count > 1)