Regenerate mockJDK using openJDK 7

idea/testData/quickfix/override/nothingToOverride/overrideJavaMethod.kt

@@ -1,6 +1,6 @@
-// "Change function signature to 'fun next(p0: Int): Int'" "true"
+// "Change function signature to 'fun next(bits: Int): Int'" "true"
 import java.util.Random
 
 class MyRandom : Random() {
     <caret>override fun next(): Int = 4
-}
+}