Titan does not know the alternative notation of the control function

Summary

According to Section 8.3 of the TTCN-3 standard control is identical to function control() and also control can have parameters this way and can be called explicitly from another control part with or without parameters

Steps and/or TTCN-3 code to reproduce

In one module:

import from modules2 all;
import from modules5 all;

control{
  modules2.control; //../src/modules.ttcn:217.12-18: error: syntax error
  modules5.control(3); //../src/modules.ttcn:218.12-18: error: syntax error
}

In modules2:

control{
  var integer myvar := 2;
}

In modules5:

module modules5 {

function control(integer i) return integer{ //../src/modules5.ttcn:3.10-16: error: at or before token `control': syntax error
  var integer myvar := i;
  return myvar;
}

}

What is the current bug behavior?

Errors, see in comments

What is the expected correct behavior?

These whould all work.

Relevant logs and/or screenshots

Possible fixes

Titan version

8.1.0

Platform details (OS type and version)

Microsoft Windows 10 Enterprise 10.0.19042

/cc @aknappqwt @mmagyari