Fix early return statement

Sources/Rules.swift

@@ -3137,10 +3137,11 @@ public struct _FormatRules {
                     return
                 }
             }
-            if formatter.index(of: .keyword("return"), after: i) != nil {
+            let endIndex = formatter.endOfScope(at: i)
+            if let endIndex = endIndex, formatter.tokens[i + 1 ..< endIndex].contains(.keyword("return")) {
                 return
             }
-            if formatter.next(.nonSpaceOrLinebreak, after: i) == .endOfScope("}"),
+            if formatter.index(of: .nonSpaceOrLinebreak, after: i) == endIndex,
                let startIndex = formatter.index(of: .nonSpaceOrLinebreak, before: i)
             {
                 formatter.removeTokens(in: startIndex + 1 ... i)

Tests/RulesTests+Redundancy.swift

@@ -2919,6 +2919,22 @@ class RedundancyTests: RulesTests {
         testFormatting(for: input, output, rule: FormatRules.redundantReturn, options: options)
     }
 
+    func testNoRemoveDebugReturnFollowedBySwitch() {
+        let input = """
+        func swiftFormatBug() -> Foo {
+            return .foo
+
+            switch state {
+            case .foo, .bar:
+                return state
+            }
+        }
+        """
+        let options = FormatOptions(swiftVersion: "5.9")
+        testFormatting(for: input, rule: FormatRules.redundantReturn, options: options,
+                       exclude: ["wrapSwitchCases", "sortSwitchCases"])
+    }
+
     // MARK: - redundantBackticks
 
     func testRemoveRedundantBackticksInLet() {