use mayHaveBooleanValue

Author: erik-krogh

javascript/ql/src/semmle/javascript/frameworks/Markdown.qll

@@ -126,8 +126,7 @@ private class MarkdownItStep extends TaintTracking::SharedTaintStep {
   override predicate step(DataFlow::Node pred, DataFlow::Node succ) {
     exists(API::CallNode renderer, API::CallNode call |
       renderer = API::moduleImport("markdown-it").getACall() and
-      renderer.getParameter(0).getMember("html").getARhs().asExpr().(BooleanLiteral).getValue() =
-        "true" and
+      renderer.getParameter(0).getMember("html").getARhs().mayHaveBooleanValue(true) and
       call = renderer.getReturn().getMember(["render", "renderInline"]).getACall()
     |
       succ = call and