Fix MA0194 merge with existing and-patterns

src/Meziantou.Analyzer.CodeFixers/Rules/MergeIsPatternChecksFixer.cs

@@ -207,8 +207,7 @@ private static PatternSyntax ParenthesizePatternIfNeeded(PatternSyntax pattern,
             return pattern;
 
         if (pattern is BinaryPatternSyntax binaryPattern &&
-            parentPatternKind is SyntaxKind.AndPattern &&
-            binaryPattern.Kind() is SyntaxKind.OrPattern)
+            (parentPatternKind, binaryPattern.Kind()) is (SyntaxKind.AndPattern, SyntaxKind.OrPattern) or (SyntaxKind.OrPattern, SyntaxKind.AndPattern))
         {
             return ParenthesizedPattern(pattern);
         }
@@ -266,6 +265,12 @@ private static IOperation UnwrapOperation(IOperation operation)
 
     private static bool TryCreatePatternSyntax(IPatternOperation patternOperation, out PatternSyntax patternSyntax)
     {
+        if (patternOperation.Syntax is PatternSyntax patternFromSyntax)
+        {
+            patternSyntax = patternFromSyntax;
+            return true;
+        }
+
         switch (patternOperation)
         {
             case IConstantPatternOperation constantPatternOperation:

tests/Meziantou.Analyzer.Test/Rules/MergeIsPatternChecksAnalyzerTests.cs

@@ -89,6 +89,21 @@ enum MyEnum { Value1, Value2 }
               .ValidateAsync();
     }
 
+    [Fact]
+    public async Task LogicalOr_ParenthesizeAndPattern()
+    {
+        await CreateProjectBuilder()
+              .WithSourceCode("""
+                  byte marker = 0;
+                  _ = [|marker is 0x01 || marker is >= 0xD0 and <= 0xD7|];
+                  """)
+              .ShouldFixCodeWith("""
+                  byte marker = 0;
+                  _ = marker is 0x01 or (>= 0xD0 and <= 0xD7);
+                  """)
+              .ValidateAsync();
+    }
+
     [Fact]
     public async Task DifferentExpressions_DoNotReport()
     {