Extend vpi_escape with function and module names

Signed-off-by: Ryszard Rozak <[email protected]>

test_regress/t/t_vpi_escape.v

@@ -63,6 +63,8 @@ extern "C" int mon_check();
 
    sub \mod.with_dot (.cyc(cyc));
 
+   configure___0_ ___0_(clk);
+
    initial begin
 
 `ifdef VERILATOR
@@ -116,3 +118,32 @@ module sub (
    wire redundant = subsig1 | subsig2 | \b.c ;
 `endif
 endmodule
+
+module configure___0_(input clk);
+   function void assert0;
+   endfunction
+   function void assert_0;
+   endfunction
+   // Scope with a __0 that should not be encoded as '\0'
+   function void assert__0_;
+   endfunction
+   // Scope with special characters
+   function void assert___0$;
+   endfunction
+   // Scope with characters resembling decoded '_'
+   function void assert___05F;
+   endfunction
+   // Scope with characters resembling decoded '_' and 0 after it
+   function void assert___05F0;
+   endfunction
+
+   initial begin
+      assert0();
+      assert_0();
+      assert__0_();
+      assert___0$();
+      assert___05F();
+      assert___05F0();
+      $finish;
+   end
+endmodule