Captured value initialization is no more allowed #KT-10445 Fixed

idea/testData/quickfix/variables/changeMutability/capturedValInitialization.kt

@@ -0,0 +1,9 @@
+// "Make variable mutable" "true"
+fun exec(f: () -> Unit) = f()
+
+fun foo() {
+    val x: Int
+    exec {
+        <caret>x = 42
+    }
+}