DevTools: fix formatting of continue statement

BUG=630718
R=kozyatinskiy

Review-Url: https://codereview.chromium.org/2184193003
Cr-Commit-Position: refs/heads/master@{#408206}

front_end/formatter_worker/JavaScriptFormatter.js

@@ -299,7 +299,7 @@ WebInspector.JavaScriptFormatter.prototype = {
                 if (node.consequent.type !== "BlockStatement")
                     return "<";
             }
-        } else if (node.type === "BreakStatement" || node.type === "ThrowStatement" || node.type === "ReturnStatement" || node.type === "ExpressionStatement") {
+        } else if (node.type === "BreakStatement" || node.type === "ContinueStatement" || node.type === "ThrowStatement" || node.type === "ReturnStatement" || node.type === "ExpressionStatement") {
             return "n";
         }
         return "";