Refactored ConvertMemberToExtension to re-use original declaration instead of regenerating it by text

#KT-4920 Fixed

idea/testData/intentions/declarations/convertMemberToExtension/KDoc.kt

@@ -0,0 +1,8 @@
+class Foo
+{
+    /**
+     * Doc
+     */
+    public val <caret>count: Int
+        get() = 1
+}

idea/testData/intentions/declarations/convertMemberToExtension/KDoc.kt.after

@@ -0,0 +1,9 @@
+class Foo
+{
+}
+
+/**
+ * Doc
+ */
+public val Foo.<caret>count: Int
+    get() = 1

idea/testData/intentions/declarations/convertMemberToExtension/explicitUnit.kt.after

@@ -1,5 +1,4 @@
 class Owner {
 }
 
-fun Owner.f(): Unit {
-}
+fun Owner.f(): Unit {}

idea/testData/intentions/declarations/convertMemberToExtension/genericFunInGenericClass.kt.after

@@ -1,4 +1,4 @@
 abstract class Owner<T> {
 }
 
-fun <T, R> Owner<T>.f(t: T, r: R): R = r
+fun Owner<T>.f<T, R>(t: T, r: R): R = r

idea/testData/intentions/declarations/convertMemberToExtension/genericFunParamAfterName.kt.after

@@ -1,4 +1,4 @@
 abstract class Owner {
 }
 
-fun <T> Owner.f(t: T): T = t
+fun Owner.f<T>(t: T): T = t

idea/testData/intentions/declarations/convertMemberToExtension/simple.kt.after

@@ -1,5 +1,4 @@
 class Owner {
 }
 
-fun Owner.f() {
-}
+fun Owner.f() {}

idea/testData/intentions/declarations/convertMemberToExtension/valWithGetter.kt.after

@@ -2,4 +2,4 @@ class Owner {
 }
 
 val Owner.p: Int
-    get() = 1
+  get() = 1

idea/testData/intentions/declarations/convertMemberToExtension/valWithGetterBlockBody.kt

@@ -1,4 +1,4 @@
 class Owner {
     val <caret>p: Int
-      get() { return 1}
+        get() { return 1}
 }

idea/testData/intentions/declarations/convertMemberToExtension/valWithGetterBlockBody.kt.after

@@ -2,6 +2,4 @@ class Owner {
 }
 
 val Owner.p: Int
-    get() {
-        return 1
-    }
+    get() { return 1}

idea/testData/intentions/declarations/convertMemberToExtension/varWithDefaultSetter.kt

@@ -1,6 +1,6 @@
 // ERROR: Property must be initialized
 class Owner {
     var <caret>p: Int
-      get() = 1
-      set
+        get() = 1
+        set
 }

idea/testData/intentions/declarations/convertMemberToExtension/varWithGetter.kt

@@ -1,5 +1,5 @@
 // ERROR: Property must be initialized
 class Owner {
     var <caret>p: Int
-      get() { return 1 }
+        get() { return 1 }
 }

idea/testData/intentions/declarations/convertMemberToExtension/varWithGetter.kt.after

@@ -3,9 +3,7 @@ class Owner {
 }
 
 var Owner.p: Int
-    get() {
-        return 1
-    }
+    get() { return 1 }
     set(value) {
         <caret><selection>throw UnsupportedOperationException()</selection>
     }

idea/testData/intentions/declarations/convertMemberToExtension/varWithGetterAndSetter.kt.after

@@ -2,6 +2,5 @@ class Owner {
 }
 
 var Owner.p: Int
-    get() = 1
-    set(v) {
-    }
+  get() = 1
+  set(v) {}

idea/testData/intentions/declarations/convertMemberToExtension/varWithSetter.kt.after

@@ -4,5 +4,4 @@ class Owner {
 
 var Owner.p: Int
     get() = <caret><selection>throw UnsupportedOperationException()</selection>
-    set(v) {
-    }
+    set(v) {}

idea/testData/intentions/declarations/convertMemberToExtension/withType.kt.after

@@ -1,6 +1,4 @@
 class Owner {
 }
 
-fun Owner.f(): Int {
-    return 1
-}
+fun Owner.f(): Int { return 1 }