make PrecedenceComparer.Compare slightly more readable

Author: WalkerCodeRanger

Semver/Comparers/PrecedenceComparer.cs

@@ -58,16 +58,16 @@ public override int Compare(SemVersion x, SemVersion y)
             comparison = x.Patch.CompareTo(y.Patch);
             if (comparison != 0) return comparison;
 
-            var xPrereleaseIdentifiers = x.PrereleaseIdentifiers;
-            var yPrereleaseIdentifiers = y.PrereleaseIdentifiers;
-
             // Release are higher precedence than prerelease
-            var xIsRelease = xPrereleaseIdentifiers.Count == 0;
-            var yIsRelease = yPrereleaseIdentifiers.Count == 0;
+            var xIsRelease = x.IsRelease;
+            var yIsRelease = y.IsRelease;
             if (xIsRelease && yIsRelease) return 0;
             if (xIsRelease) return 1;
             if (yIsRelease) return -1;
 
+            var xPrereleaseIdentifiers = x.PrereleaseIdentifiers;
+            var yPrereleaseIdentifiers = y.PrereleaseIdentifiers;
+
             var minLength = Math.Min(xPrereleaseIdentifiers.Count, yPrereleaseIdentifiers.Count);
             for (int i = 0; i < minLength; i++)
             {