SA1020 Increment symbol '++' should not be preceded by a space (#7237)

Author: elachlan

eng/Common.globalconfig

@@ -746,7 +746,7 @@ dotnet_diagnostic.SA1015.severity = suggestion
 dotnet_diagnostic.SA1019.severity = none
 
 # Increment symbol '++' should not be preceded by a space
-dotnet_diagnostic.SA1020.severity = suggestion
+dotnet_diagnostic.SA1020.severity = warning
 
 # Negative sign should be preceded by a space
 dotnet_diagnostic.SA1021.severity = suggestion

src/Build.UnitTests/Definition/ToolsetConfigurationReader_Tests.cs

@@ -598,7 +598,7 @@ private void CheckPathsTable(Dictionary<string, ProjectImportPathMatch> pathsTab
             var paths = pathsTable[kind];
             Assert.Equal(paths.SearchPaths.Count, expectedPaths.Length);
 
-            for (int i = 0; i < paths.SearchPaths.Count; i ++)
+            for (int i = 0; i < paths.SearchPaths.Count; i++)
             {
                 Assert.Equal(paths.SearchPaths[i], expectedPaths[i]);
             }