invert if: don't insert continue outside while loop (IDEA-175283)

java/java-tests/testData/codeInsight/invertIfCondition/beforeWhileAfter.java

@@ -0,0 +1,8 @@
+// "Invert 'if' condition" "true"
+class A {
+    public void foo() {
+        <caret>if (c) a();
+        while (true) {
+        }
+    }
+}