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

idea/testData/quickfix/createFromUsage/createVariable/property/localValNoReceiver.kt

@@ -0,0 +1,13 @@
+// "Create property 'foo'" "false"
+// ACTION: Convert to expression body
+// ACTION: Disable 'Convert to Expression Body'
+// ACTION: Edit intention settings
+// ACTION: Create parameter 'foo'
+// ACTION: Create local variable 'foo'
+// ERROR: Unresolved reference: foo
+
+fun test() {
+    fun nestedTest(): Int {
+        return <caret>foo
+    }
+}