Assigning a TProc inside a non-generic inline method leads to compiler error. Why?

Question

When trying to assign procedure begin end to a TProc in the code below, I get a compiler error:

E2441 Inline function declared in interface section must not use local symbol '.TMyClass.DoesNotCompile$ActRec'

unit Unit1;
interface
uses
  System.SysUtils;

type
  TMyClass = class
    procedure Compiles<T>; inline;
    procedure DoesNotCompile; inline;
  end;


implementation

procedure TMyClass.Compiles<T>;
var
  m: TProc;
begin
  m := procedure begin end; //<== works
end;

procedure TMyClass.DoesNotCompile;
var
  m: TProc;
begin
  m := procedure begin end; //<== compiler error
end;

end.

I would expect the generic and non-generic versions to behave in the same way. What is the difference, and: is it safe to use the generic version?

I'm using Delphi 11.1 Alexandria.