Don't count no line ending and LF

Author: davidwengier

src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Extensions/SourceTextExtensions.cs

@@ -345,7 +345,7 @@ public static bool HasLFLineEndings(this SourceText text)
             {
                 crlfCount++;
             }
-            else
+            else if (line.EndIncludingLineBreak != line.End)
             {
                 lfCount++;
             }