KT-1064 Override methods should be separated with line breaks

idea/testData/codeInsight/overrideImplement/generateMulti.kt

@@ -0,0 +1,11 @@
+package something
+
+trait Some<T> {
+    fun someFoo()
+    fun someOtherFoo() : Int
+    fun someGenericFoo() : T
+}
+
+class SomeOther<S> : Some<S> {
+    <caret>
+}

idea/testData/codeInsight/overrideImplement/generateMulti.kt.after

@@ -0,0 +1,20 @@
+package something
+
+trait Some<T> {
+    fun someFoo()
+    fun someOtherFoo() : Int
+    fun someGenericFoo() : T
+}
+
+class SomeOther<S> : Some<S> {
+
+    override fun someFoo() {
+        throw UnsupportedOperationException()
+    }
+
+    override fun someGenericFoo(): S {
+        throw UnsupportedOperationException()
+    }
+
+    override fun someOtherFoo(): Int = 0
+}