UnrollLoopAction: fixes according to review IDEA-CR-24513

1. Check that loop parameter is not written
2. Support List.of, Collections.singleton, Collections.singletonList
3. Support if w/o braces
4. Support break not in last position

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/unrollLoop/afterUnrollBreak.java

@@ -0,0 +1,19 @@
+// "Unroll loop" "true"
+class Test {
+  void test() {
+      if (!(Math.random() > 0.5)) {
+          System.out.println((Object) "one");
+          if (!(Math.random() > 0.5)) {
+              System.out.println((Object) 1);
+              if (!(Math.random() > 0.5)) {
+                  System.out.println((Object) 1.0);
+                  if (!(Math.random() > 0.5)) {
+                      System.out.println((Object) 1.0f);
+                  }
+              }
+          }
+      }
+  }
+
+  void foo(boolean b) {}
+}