Fix line breaking for attributes by grouping them with their type (#1039)

Author: TTOzzi

Sources/SwiftFormat/PrettyPrint/TokenStreamCreator.swift

@@ -2385,13 +2385,15 @@ fileprivate final class TokenStreamCreator: SyntaxVisitor {
   }
 
   override func visit(_ node: AttributedTypeSyntax) -> SyntaxVisitorContinueKind {
+    before(node.firstToken(viewMode: .sourceAccurate), tokens: .open)
     arrangeAttributeList(node.attributes)
     for specifier in node.specifiers {
       after(
         specifier.firstToken(viewMode: .sourceAccurate),
         tokens: .break(.continue, newlines: .elective(ignoresDiscretionary: true))
       )
     }
+    after(node.lastToken(viewMode: .sourceAccurate), tokens: .close)
     return .visitChildren
   }
 

Tests/SwiftFormatTests/PrettyPrint/AttributeTests.swift

@@ -623,4 +623,25 @@ final class AttributeTests: PrettyPrintTestCase {
 
     assertPrettyPrintEqual(input: input, expected: expected, linelength: 45)
   }
+
+  func testAttributeLineBreakInInheritanceClause() {
+    let input =
+      """
+      public class MyClass: Foo, @unchecked Sendable, Bar {
+        // …
+      }
+
+      """
+    let expected =
+      """
+      public class MyClass: Foo,
+        @unchecked Sendable, Bar
+      {
+        // …
+      }
+
+      """
+
+    assertPrettyPrintEqual(input: input, expected: expected, linelength: 45)
+  }
 }

Tests/SwiftFormatTests/PrettyPrint/FunctionDeclTests.swift

@@ -1129,8 +1129,8 @@ final class FunctionDeclTests: PrettyPrintTestCase {
           .InnerMember,
       ) {}
       func foo(
-        cmp: @escaping (R) ->
-          ()
+        cmp:
+          @escaping (R) -> ()
       ) {}
       func foo(
         cmp: