Convert KFunction to Function in type mismatch fixes #KT-16770 Fixed

idea/testData/quickfix/typeMismatch/functionExtensionType.kt

@@ -0,0 +1,8 @@
+// "Change return type of enclosing function 'myFunction' to '(Int) -> Boolean'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    fun myFunction(s: String): (String, Int) -> Boolean = <caret>s::verifyData
+}
+
+fun String.verifyData(a: Int) = this.length > a

idea/testData/quickfix/typeMismatch/functionExtensionType.kt.after

@@ -0,0 +1,8 @@
+// "Change return type of enclosing function 'myFunction' to '(Int) -> Boolean'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    fun myFunction(s: String): (Int) -> Boolean = s::verifyData
+}
+
+fun String.verifyData(a: Int) = this.length > a

idea/testData/quickfix/typeMismatch/functionNestedType.kt

@@ -0,0 +1,8 @@
+// "Change type of 'myFunction' to '(Int, (Int) -> Boolean) -> Boolean'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    var myFunction: (Int, Int) -> Int = <caret>::verifyData
+}
+
+fun verifyData(a: Int, b: (Int) -> Boolean) = b(a)

idea/testData/quickfix/typeMismatch/functionNestedType.kt.after

@@ -0,0 +1,8 @@
+// "Change type of 'myFunction' to '(Int, (Int) -> Boolean) -> Boolean'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    var myFunction: (Int, (Int) -> Boolean) -> Boolean = ::verifyData
+}
+
+fun verifyData(a: Int, b: (Int) -> Boolean) = b(a)

idea/testData/quickfix/typeMismatch/functionNestedType2.kt

@@ -0,0 +1,10 @@
+// "Change type of 'myFunction' to '(Int) -> KFunction0<Boolean>'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    var myFunction: (Int, Int) -> Int = <caret>::verifyData
+}
+
+fun Int.internalVerifyData() = this > 0
+
+fun verifyData(a: Int) = a::internalVerifyData

idea/testData/quickfix/typeMismatch/functionNestedType2.kt.after

@@ -0,0 +1,12 @@
+import kotlin.reflect.KFunction0
+
+// "Change type of 'myFunction' to '(Int) -> KFunction0<Boolean>'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    var myFunction: (Int) -> KFunction0<Boolean> = ::verifyData
+}
+
+fun Int.internalVerifyData() = this > 0
+
+fun verifyData(a: Int) = a::internalVerifyData

idea/testData/quickfix/typeMismatch/functionReflectType.kt

@@ -0,0 +1,8 @@
+// "Change type of 'myFunction' to 'KFunction2<Int, Int, Boolean>'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    var myFunction: (Int, Int) -> Int = <caret>::verifyData
+}
+
+fun verifyData(a: Int, b: Int) = (a > 10 && b > 10)

idea/testData/quickfix/typeMismatch/functionReflectType.kt.after

@@ -0,0 +1,10 @@
+import kotlin.reflect.KFunction2
+
+// "Change type of 'myFunction' to 'KFunction2<Int, Int, Boolean>'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    var myFunction: KFunction2<Int, Int, Boolean> = ::verifyData
+}
+
+fun verifyData(a: Int, b: Int) = (a > 10 && b > 10)

idea/testData/quickfix/typeMismatch/functionType.kt

@@ -0,0 +1,8 @@
+// "Change type of 'myFunction' to '(Int, Int) -> Boolean'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    var myFunction: (Int, Int) -> Int = <caret>::verifyData
+}
+
+fun verifyData(a: Int, b: Int) = (a > 10 && b > 10)

idea/testData/quickfix/typeMismatch/functionType.kt.after

@@ -0,0 +1,8 @@
+// "Change type of 'myFunction' to '(Int, Int) -> Boolean'" "true"
+// WITH_RUNTIME
+
+fun foo() {
+    var myFunction: (Int, Int) -> Boolean = ::verifyData
+}
+
+fun verifyData(a: Int, b: Int) = (a > 10 && b > 10)