Create from Usage: Make extension functions/properties 'private' by default

#KT-11799 Fixed

idea/testData/quickfix/createFromUsage/createFunction/call/approximateAnonymousObjectRuntime.kt.after

@@ -7,6 +7,6 @@ fun main(args: Array<String>) {
     list.foo { object : A() {} }
 }
 
-fun <E> List<E>.foo(function: () -> A) {
+private fun <E> List<E>.foo(function: () -> A) {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/approximateLocalClassRuntime.kt.after

@@ -9,6 +9,6 @@ fun main(args: Array<String>) {
     list.foo { Local() }
 }
 
-fun <E> List<E>.foo(function: () -> A) {
+private fun <E> List<E>.foo(function: () -> A) {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/extensionByExtensionReceiver/extensionFunction.kt.after

@@ -9,6 +9,6 @@ fun A.test() {
     bar(foo(n))
 }
 
-fun A.foo(n: Int): Boolean {
+private fun A.foo(n: Int): Boolean {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/extensionByExtensionReceiver/extensionLambda.kt.after

@@ -12,6 +12,6 @@ fun test() {
     }
 }
 
-fun A.foo(n: Int): Boolean {
+private fun A.foo(n: Int): Boolean {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/extensionByExtensionReceiver/extensionPropertyGetter.kt.after

@@ -2,7 +2,7 @@
 // ERROR: Property must be initialized
 class A(val n: Int)
 
-val A.foo: Boolean<caret>
+private val A.foo: Boolean
 
 class B {
     val A.test: Boolean get() = foo

idea/testData/quickfix/createFromUsage/createFunction/call/extensionByExtensionReceiver/extensionPropertySetter.kt.after

@@ -2,7 +2,7 @@
 // ERROR: Property must be initialized
 class A(val n: Int)
 
-var A.foo: Boolean<caret>
+private var A.foo: Boolean
 
 class B {
     var A.test: Boolean

idea/testData/quickfix/createFromUsage/createFunction/call/extensionFunOnGroovyType.after.kt

@@ -5,6 +5,6 @@ fun test(): Int {
     return A().foo()
 }
 
-fun A.foo(): Int {
+private fun A.foo(): Int {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/extensionFunOnJavaType.after.kt

@@ -5,6 +5,6 @@ fun test(): Int? {
     return A().foo(1, "2")
 }
 
-fun A.foo(i: Int, s: String): Int? {
+private fun A.foo(i: Int, s: String): Int? {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/extensionFunOnTrait.kt.after

@@ -6,6 +6,6 @@ fun test(t: T) {
     val b: Boolean = t.foo("1", 2)
 }
 
-fun T.foo(s: String, i: Int): Boolean {
+private fun T.foo(s: String, i: Int): Boolean {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/extensionFunOnTypeFromAnotherPackage.after.kt

@@ -10,6 +10,6 @@ class X {
     }
 }
 
-fun package2.A.foo() {
+private fun package2.A.foo() {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/funOnLibObject.kt.after

@@ -5,6 +5,6 @@ fun test() {
     val a: Int = Unit.foo(2)
 }
 
-fun Unit.foo(i: Int): Int {
+private fun Unit.foo(i: Int): Int {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/funOnLibType.kt.after

@@ -7,6 +7,6 @@ fun test() {
     val a: A<Int> = 2.foo(A(1))
 }
 
-fun Int.foo(a: A<Int>): A<Int> {
+private fun Int.foo(a: A<Int>): A<Int> {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/functionalTypeInReceiver.kt.after

@@ -4,6 +4,6 @@ fun foo(block: (Int) -> String) {
     block.bar()
 }
 
-fun <P1, R> ((P1) -> R).bar() {
+private fun <P1, R> ((P1) -> R).bar() {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/typeArguments/extension.kt.after

@@ -7,6 +7,6 @@ class A<T>(val items: List<T>) {
     }
 }
 
-fun <E, T, U> List<E>.foo(t: T, u: U): T {
+private fun <E, T, U> List<E>.foo(t: T, u: U): T {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/typeArguments/extensionPartialSubstitution.kt.after

@@ -7,6 +7,6 @@ class A<T>(val items: List<T>) {
     }
 }
 
-fun <E, T> List<E>.foo(t: T, s: String): T {
+private fun <E, T> List<E>.foo(t: T, s: String): T {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/typeArguments/extensionWithReceiverArg.kt.after

@@ -7,6 +7,6 @@ class A<T>(val items: List<T>) {
     }
 }
 
-fun <E, T, U> List<E>.foo(t: T, u: U): T {
+private fun <E, T, U> List<E>.foo(t: T, u: U): T {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }

idea/testData/quickfix/createFromUsage/createFunction/call/typeArguments/extensionWithTypeParameterAsReceiver.kt.after

@@ -3,6 +3,6 @@ fun <T> foo(t: T) {
     t.bar()
 }
 
-fun <T> T.bar() {
+private fun <T> T.bar() {
     TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
 }