QuickFix: change property type to match it's initializer type

idea/testData/quickfix/typeMismatch/afterPropertyTypeMismatch.kt

@@ -0,0 +1,4 @@
+// "Change 'f' type to '(Long) -> Unit'" "true"
+fun foo() {
+    var f: (Long) -> Unit = if (true) { (x: Long) ->  }<caret> else { (x: Long) ->  }
+}

idea/testData/quickfix/typeMismatch/beforePropertyTypeMismatch.kt

@@ -0,0 +1,4 @@
+// "Change 'f' type to '(Long) -> Unit'" "true"
+fun foo() {
+    var f: Int = if (true) { (x: Long) ->  }<caret> else { (x: Long) ->  }
+}