KT-12504 Intention to make open class with only private constructors sealed (#1193)

* Intention to make open class with only private constructors sealed #KT-12504 Fixed

* Fixed #KT-12504

idea/testData/intentions/convertClassToSealedClass/.intention

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+org.jetbrains.kotlin.idea.intentions.ConvertClassToSealedClassIntention

idea/testData/intentions/convertClassToSealedClass/abstract.kt

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+<caret>abstract class Test private constructor()

idea/testData/intentions/convertClassToSealedClass/abstract.kt.after

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+sealed class Test

idea/testData/intentions/convertClassToSealedClass/noConstructor.kt

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+// IS_APPLICABLE: false
+open class Test<caret>

idea/testData/intentions/convertClassToSealedClass/notOpenAndAbstract.kt

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+// IS_APPLICABLE: false
+class Test<caret> private constructor()

idea/testData/intentions/convertClassToSealedClass/notPrivatePrimaryConstructor.kt

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+// IS_APPLICABLE: false
+open class Test<caret> constructor()

idea/testData/intentions/convertClassToSealedClass/notPrivateSecondaryConstructor.kt

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+// IS_APPLICABLE: false
+open class Test<caret> private constructor() {
+    constructor(i: Int) : this() {
+    }
+}

idea/testData/intentions/convertClassToSealedClass/onlySecondaryConstructor.kt

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+open class Test<caret> {
+    private constructor(i: Int) {
+    }
+}

idea/testData/intentions/convertClassToSealedClass/onlySecondaryConstructor.kt.after

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+sealed class Test {
+    constructor(i: Int) {
+    }
+}

idea/testData/intentions/convertClassToSealedClass/primaryConstructor.kt

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+open class Test<caret> private constructor()

idea/testData/intentions/convertClassToSealedClass/primaryConstructor.kt.after

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+sealed class Test

idea/testData/intentions/convertClassToSealedClass/primaryConstructorWithAnnotation.kt

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+// IS_APPLICABLE: false
+annotation class Inject
+open class Test<caret> @Inject private constructor()

idea/testData/intentions/convertClassToSealedClass/primaryConstructorWithValueParameter.kt

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+open class Test<caret> private constructor(s: String)

idea/testData/intentions/convertClassToSealedClass/primaryConstructorWithValueParameter.kt.after

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+sealed class Test(s: String)

idea/testData/intentions/convertClassToSealedClass/secondaryConstructor.kt

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+open class Test<caret> private constructor() {
+    private constructor(i: Int) : this() {
+    }
+}

idea/testData/intentions/convertClassToSealedClass/secondaryConstructor.kt.after

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+sealed class Test() {
+    constructor(i: Int) : this() {
+    }
+}

idea/testData/intentions/convertClassToSealedClass/secondaryConstructorWithAnnotation.kt

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+// IS_APPLICABLE: false
+annotation class Inject
+open class Test<caret> private constructor() {
+    private @Inject constructor(i: Int) : this() {
+    }
+}