Unwrap multiline statement braces if rule disabled

Sources/Rules.swift

@@ -1956,8 +1956,8 @@ public struct _FormatRules {
                 }
 
                 // Avoid conflicts with wrapMultilineStatementBraces
-                // TODO: find a better solution for this
-                if let keywordIndex =
+                let ruleName = FormatRules.wrapMultilineStatementBraces.name
+                if formatter.options.enabledRules.contains(ruleName), let keywordIndex =
                     formatter.indexOfLastSignificantKeyword(at: prevIndex + 1, excluding: ["where"]),
                     case let .keyword(keyword) = formatter.tokens[keywordIndex],
                     ["if", "for", "guard", "while", "switch", "func", "init", "subscript",

Tests/RulesTests+Braces.swift

@@ -276,6 +276,37 @@ class BracesTests: RulesTests {
         testFormatting(for: input, output, rule: FormatRules.braces)
     }
 
+    func testBraceUnwrappedIfWrapMultilineStatementBracesRuleDisabled() {
+        let input = """
+        if let foo = bar,
+           let baz = quux
+        {
+            return nil
+        }
+        """
+        let output = """
+        if let foo = bar,
+           let baz = quux {
+            return nil
+        }
+        """
+        testFormatting(for: input, output, rule: FormatRules.braces,
+                       exclude: ["wrapMultilineStatementBraces"])
+    }
+
+    func testBraceNotUnwrappedIfWrapMultilineStatementBracesRuleDisabled() {
+        let input = """
+        if let foo = bar,
+           let baz = quux
+        {
+            return nil
+        }
+        """
+        testFormatting(for: input, rules: [
+            FormatRules.braces, FormatRules.wrapMultilineStatementBraces,
+        ])
+    }
+
     // allman style
 
     func testKnRBracesAreConverted() {