KT-13298 Suggest names for overridden properties / functions in completion

#KT-13298 Fixed

idea/idea-completion/testData/handlers/basic/override/AfterFunKeyword.kt

@@ -0,0 +1,9 @@
+interface I {
+    fun foo(p: Int)
+}
+
+class A : I {
+    override fun f<caret>
+}
+
+// ELEMENT_TEXT: "override fun foo(p: Int) {...}"

idea/idea-completion/testData/handlers/basic/override/AfterFunKeyword.kt.after

@@ -0,0 +1,11 @@
+interface I {
+    fun foo(p: Int)
+}
+
+class A : I {
+    override fun foo(p: Int) {
+        <caret><selection>TODO("not implemented") //To change body of created functions use File | Settings | File Templates.</selection>
+    }
+}
+
+// ELEMENT_TEXT: "override fun foo(p: Int) {...}"

idea/idea-completion/testData/handlers/basic/override/AfterFunKeywordKeepModifiersBefore.kt

@@ -0,0 +1,6 @@
+class A {
+    @Deprecated("") // it is deprecated
+    public override fun e<caret>
+}
+
+// ELEMENT_TEXT: "override operator fun equals(other: Any?): Boolean {...}"

idea/idea-completion/testData/handlers/basic/override/AfterFunKeywordKeepModifiersBefore.kt.after

@@ -0,0 +1,8 @@
+class A {
+    @Deprecated("") // it is deprecated
+    public override fun equals(other: Any?): Boolean {
+        <caret><selection>return super.equals(other)</selection>
+    }
+}
+
+// ELEMENT_TEXT: "override operator fun equals(other: Any?): Boolean {...}"

idea/idea-completion/testData/handlers/basic/override/AfterValKeyword.kt

@@ -0,0 +1,9 @@
+interface I {
+    val someVal: String?
+}
+
+class A : I {
+    override val <caret>
+}
+
+// ELEMENT_TEXT: "override val someVal: String?"

idea/idea-completion/testData/handlers/basic/override/AfterValKeyword.kt.after

@@ -0,0 +1,10 @@
+interface I {
+    val someVal: String?
+}
+
+class A : I {
+    override val someVal: String?
+        get() = <caret><selection>throw UnsupportedOperationException()</selection>
+}
+
+// ELEMENT_TEXT: "override val someVal: String?"

idea/idea-completion/testData/handlers/basic/override/AfterValKeywordInConstructorParameter.kt

@@ -0,0 +1,8 @@
+interface I {
+    val someVal: java.io.File?
+}
+
+class A(override val s<caret>) : I {
+}
+
+// ELEMENT_TEXT: "override val someVal: File?"

idea/idea-completion/testData/handlers/basic/override/AfterValKeywordInConstructorParameter.kt.after

@@ -0,0 +1,10 @@
+import java.io.File
+
+interface I {
+    val someVal: java.io.File?
+}
+
+class A(override val someVal: File?<caret>) : I {
+}
+
+// ELEMENT_TEXT: "override val someVal: File?"

idea/idea-completion/testData/handlers/basic/override/ImplementFunction.kt.after

@@ -4,7 +4,7 @@ interface I {
 
 class A : I {
     override fun foo(p: Int) {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+        <caret><selection>TODO("not implemented") //To change body of created functions use File | Settings | File Templates.</selection>
     }
 }