[sv-ec] Syntax for covergroup instantiation

As per IEEE P1800 LRM, both the syntax (shown below) for a covergroup
instance declaration are supported.
 
cg cg_inst;  [In this case, user has to instantiate it procedurally,
namely, cg_inst = new; ]
 
cg cg_inst = new;
 
Now, what will be the behavior in the following example?
 
module test;
covergroup cg @(posedge clk);
  coverpoint a;
endgroup
cg cg_inst = new;   // instantiation at module level
..
initial
begin
  cg_inst = new;     // instantiation at block level
  ...
end
endmodule
 
 
Thx,
Swapnajit.