Java: Don't fold too complex expressions when extracting method (IDEA-175221, IDEA-167255)

java/java-tests/testData/refactoring/extractMethod/BuilderChainWithArrayAccessIf_after.java

@@ -0,0 +1,14 @@
+class Foo {
+    boolean bar(String[] a) {
+        for (int i = 0; i < a.length; i++) {
+            if (newMethod(a[i], i)) return true;
+        }
+        return false;
+    }
+
+    private boolean newMethod(String s, int i) {
+        if (s.length() > 3 && i % 3 == 0)
+            return true;
+        return false;
+    }
+}