PL/1 - syntax error on undeclared PTR when using LAXDCL compiler option

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Development environment used

• Z Open Editor version:
• Editor Platform
  • Visual Studio Code
  • Red Hat CodeReady Workspaces
  • Eclipse Che
  • Standalone Theia
• Editor Platform Version:

  Version: 1.87.1 (system setup)
  Commit: 1e790d77f81672c49be070e04474901747115651
  Date: 2024-03-06T00:21:36.258Z
  Electron: 27.3.2
  ElectronBuildId: 26836302
  Chromium: 118.0.5993.159
  Node.js: 18.17.1
  V8: 11.8.172.18-electron.0
  

• Operating System (on which VS Code runs such as Windows 10 2004, otherwise name and version of platform such as OpenShift v4.3):

  OS: Windows_NT x64 10.0.19045
  

• Java Version (when using VS Code or Theia, execute java -version and paste the details here):

  openjdk 17.0.10 2024-01-16
  OpenJDK Runtime Environment (build 17.0.10+7-Ubuntu-122.04.1)
  OpenJDK 64-Bit Server VM (build 17.0.10+7-Ubuntu-122.04.1, mixed mode, sharing)
  

• Related to RSE API?
  • RSE API Plugin version:
  • Zowe CLI version:
  • Node.js version:
• Logs attached (see here how to get them): yes/no

Problem Description

It would be nice if the LAXDCL compiler option is taken into account in code analysis.
For example, I got this marked as syntax error

but I specify