Create From Usage: Quick-fix for local variables

idea/testData/quickfix/createFromUsage/createVariable/localVariable/afterInWhen.kt

@@ -0,0 +1,15 @@
+// "Create local variable 'foo'" "true"
+// ERROR: Variable 'foo' must be initialized
+
+fun test(n: Int): Int {
+    return when (n) {
+        1 -> {
+            val foo: Int
+
+            foo
+        }
+        else -> {
+            n + 1
+        }
+    }
+}