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Base type of EscapingSanitizer

Co-authored-by: Erik Krogh Kristensen <erik-krogh@github.com>

Author: asgerf

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

@@ -74,10 +74,10 @@ private module MySql {
   }
 
   /** A call to the `escape` or `escapeId` method that performs SQL sanitization. */
-  class EscapingSanitizer extends SQL::SqlSanitizer, @callexpr {
+  class EscapingSanitizer extends SQL::SqlSanitizer, MethodCallExpr {
     EscapingSanitizer() {
-      this = [mysql(), pool(), connection()].getAMemberCall(["escape", "escapeId"]).asExpr() and
-      input = this.(MethodCallExpr).getArgument(0) and
+      this = [mysql(), pool(), connection()].getAMethodCall(["escape", "escapeId"]).asExpr() and
+      input = this.getArgument(0) and
       output = this
     }
   }