Big change in quickfix tests: no stupid test data format with "before" and "after" file prefixes

idea/testData/quickfix/createFromUsage/createClass/callExpression/callWithExtraArgs.kt

@@ -0,0 +1,12 @@
+// "Create class 'Foo'" "false"
+// ACTION: Create function 'Foo'
+// ACTION: Add parameter to constructor 'Foo'
+// ACTION: Split property declaration
+// ACTION: Create secondary constructor
+// ERROR: Too many arguments for public constructor Foo(a: kotlin.Int) defined in Foo
+
+class Foo(a: Int)
+
+fun test() {
+    val a = Foo(2, <caret>"2")
+}