Add quickfix for "Interface doesn't have constructors" #KT-17687 Fixed

idea/testData/quickfix/convertToAnonymousObject/labeledReturn.kt

@@ -0,0 +1,10 @@
+// "Convert to anonymous object" "true"
+interface I {
+    fun foo(): String
+}
+
+fun test() {
+    <caret>I {
+        return@I ""
+    }
+}

idea/testData/quickfix/convertToAnonymousObject/labeledReturn.kt.after

@@ -0,0 +1,12 @@
+// "Convert to anonymous object" "true"
+interface I {
+    fun foo(): String
+}
+
+fun test() {
+    object : I {
+        override fun foo(): String {
+            return ""
+        }
+    }
+}

idea/testData/quickfix/convertToAnonymousObject/multiMethod.kt

@@ -0,0 +1,11 @@
+// "Convert to anonymous object" "false"
+// ERROR: Interface I does not have constructors
+interface I {
+    fun foo(): String
+    fun bar(): Unit
+}
+
+fun test() {
+    <caret>I {
+    }
+}

idea/testData/quickfix/convertToAnonymousObject/parameter.kt

@@ -0,0 +1,10 @@
+// "Convert to anonymous object" "true"
+interface I {
+    fun foo(a: String, b: Int): Int
+}
+
+fun test() {
+    <caret>I {
+        1
+    }
+}

idea/testData/quickfix/convertToAnonymousObject/parameter.kt.after

@@ -0,0 +1,12 @@
+// "Convert to anonymous object" "true"
+interface I {
+    fun foo(a: String, b: Int): Int
+}
+
+fun test() {
+    object : I {
+        override fun foo(a: String, b: Int): Int {
+            return 1
+        }
+    }
+}

idea/testData/quickfix/convertToAnonymousObject/simple.kt

@@ -0,0 +1,8 @@
+// "Convert to anonymous object" "true"
+interface I {
+    fun foo(): String
+}
+
+fun test() {
+    val i = <caret>I { "" }
+}

idea/testData/quickfix/convertToAnonymousObject/simple.kt.after

@@ -0,0 +1,12 @@
+// "Convert to anonymous object" "true"
+interface I {
+    fun foo(): String
+}
+
+fun test() {
+    val i = object : I {
+        override fun foo(): String {
+            return ""
+        }
+    }
+}

idea/testData/quickfix/convertToAnonymousObject/unit.kt

@@ -0,0 +1,13 @@
+// "Convert to anonymous object" "true"
+interface I {
+    fun bar(): Unit
+}
+
+fun foo() {
+}
+
+fun test() {
+    <caret>I {
+        foo()
+    }
+}

idea/testData/quickfix/convertToAnonymousObject/unit.kt.after

@@ -0,0 +1,15 @@
+// "Convert to anonymous object" "true"
+interface I {
+    fun bar(): Unit
+}
+
+fun foo() {
+}
+
+fun test() {
+    object : I {
+        override fun bar() {
+            return foo()
+        }
+    }
+}