Fix nil init value removed with property wrappers

Sources/Rules.swift

@@ -1901,7 +1901,10 @@ public struct _FormatRules {
 
         // Check specifiers don't include `lazy`
         formatter.forEach(.keyword("var")) { i, _ in
-            if formatter.specifiersForType(at: i, contains: "lazy") {
+            if formatter.specifiersForType(at: i, contains: {
+                let string = $1.string
+                return string == "lazy" || (string != "@objc" && string.hasPrefix("@"))
+            }) {
                 return // Can't remove the init
             }
             // Check this isn't a Codable

Tests/RulesTests.swift

@@ -5039,6 +5039,20 @@ class RulesTests: XCTestCase {
         XCTAssertEqual(try format(input + "\n", rules: FormatRules.all), output + "\n")
     }
 
+    func testNoRemoveNilInitWithCustomAttribute() {
+        let input = "@Foo var foo: Int? = nil"
+        let output = input
+        XCTAssertEqual(try format(input, rules: [FormatRules.redundantNilInit]), output)
+        XCTAssertEqual(try format(input + "\n", rules: FormatRules.all), output + "\n")
+    }
+
+    func testRemoveNilInitWithObjcAttributes() {
+        let input = "@objc var foo: Int? = nil"
+        let output = "@objc var foo: Int?"
+        XCTAssertEqual(try format(input, rules: [FormatRules.redundantNilInit]), output)
+        XCTAssertEqual(try format(input + "\n", rules: FormatRules.all), output + "\n")
+    }
+
     // MARK: redundantLet
 
     func testRemoveRedundantLet() {

Tests/XCTestManifests.swift

@@ -490,6 +490,7 @@ extension RulesTests {
         ("testEnumCaseIndentingCommas", testEnumCaseIndentingCommas),
         ("testEnumCaseIndentingCommasWithXcodeStyle", testEnumCaseIndentingCommasWithXcodeStyle),
         ("testEnumCaseNotEqualYodaCondition", testEnumCaseNotEqualYodaCondition),
+        ("testEnumCaseWrappedIfWithXcodeStyle", testEnumCaseWrappedIfWithXcodeStyle),
         ("testEnumIfCaseEndifIndenting", testEnumIfCaseEndifIndenting),
         ("testExponentialGrouping", testExponentialGrouping),
         ("testExpressionCountEqualsZero", testExpressionCountEqualsZero),
@@ -571,7 +572,6 @@ extension RulesTests {
         ("testIfEndifInsideEnumWithTrailingCommentOutdenting", testIfEndifInsideEnumWithTrailingCommentOutdenting),
         ("testIfEndifNoIndenting", testIfEndifNoIndenting),
         ("testIfEndifOutdenting", testIfEndifOutdenting),
-        ("testEnumCaseWrappedIfWithXcodeStyle", testEnumCaseWrappedIfWithXcodeStyle),
         ("testIfFunctionAndReplaced", testIfFunctionAndReplaced),
         ("testIfUnknownCaseEndifIndenting", testIfUnknownCaseEndifIndenting),
         ("testIfUnknownCaseEndifIndenting2", testIfUnknownCaseEndifIndenting2),
@@ -828,6 +828,7 @@ extension RulesTests {
         ("testNoRemoveLinebreakAfterCommentInElements", testNoRemoveLinebreakAfterCommentInElements),
         ("testNoRemoveMethodSignature", testNoRemoveMethodSignature),
         ("testNoRemoveMultilineGetSet", testNoRemoveMultilineGetSet),
+        ("testNoRemoveNilInitWithCustomAttribute", testNoRemoveNilInitWithCustomAttribute),
         ("testNoRemoveNonNilInit", testNoRemoveNonNilInit),
         ("testNoRemoveNonRedundantNestedFunctionSelf", testNoRemoveNonRedundantNestedFunctionSelf),
         ("testNoRemoveNonRedundantNestedFunctionSelf2", testNoRemoveNonRedundantNestedFunctionSelf2),
@@ -1114,6 +1115,7 @@ extension RulesTests {
         ("testRemoveInternalFunctionArgumentName", testRemoveInternalFunctionArgumentName),
         ("testRemoveMultilineIsolatedGet", testRemoveMultilineIsolatedGet),
         ("testRemoveMultipleRedundantNilInitsInSameLine", testRemoveMultipleRedundantNilInitsInSameLine),
+        ("testRemoveNilInitWithObjcAttributes", testRemoveNilInitWithObjcAttributes),
         ("testRemoveRedundantBackticksInLet", testRemoveRedundantBackticksInLet),
         ("testRemoveRedundantEmptyReturnType", testRemoveRedundantEmptyReturnType),
         ("testRemoveRedundantImplicitUnwrapInit", testRemoveRedundantImplicitUnwrapInit),