TMRG silently ignores buf and similar primitives
Input code:
module a();
wire x = 1'b1;
wire y;
buf mybuf (y, x);
endmodule
Output code:
module aTMR();
wire xA = 1'b1;
wire xB = 1'b1;
wire xC = 1'b1;
wire yA;
wire yB;
wire yC;
endmodule