Create From Usage: Move "Create function"-related tests to separate directory

idea/testData/quickfix/createFromUsage/createFunction/call/beforeFunOnUserObject.kt

@@ -0,0 +1,7 @@
+// "Create function 'foo' from usage" "true"
+
+object A
+
+fun test() {
+    val a: Int = A.<caret>foo(2)
+}