add support for #[hdl(sim)] enum_ty.Variant(value) and #[hdl(sim)] EnumTy::Variant(value) and non-sim variants too

crates/fayalite/tests/sim/expected/enums.vcd

@@ -16,18 +16,25 @@ $var wire 1 ) \0 $end
 $var wire 1 * \1 $end
 $upscope $end
 $upscope $end
-$scope struct the_reg $end
+$scope struct b2_out $end
 $var string 1 + \$tag $end
+$scope struct HdlSome $end
+$var wire 1 , \0 $end
+$var wire 1 - \1 $end
+$upscope $end
+$upscope $end
+$scope struct the_reg $end
+$var string 1 . \$tag $end
 $scope struct B $end
-$var reg 1 , \0 $end
-$var reg 1 - \1 $end
+$var reg 1 / \0 $end
+$var reg 1 0 \1 $end
 $upscope $end
 $scope struct C $end
 $scope struct a $end
-$var reg 1 . \[0] $end
-$var reg 1 / \[1] $end
+$var reg 1 1 \[0] $end
+$var reg 1 2 \[1] $end
 $upscope $end
-$var reg 2 0 b $end
+$var reg 2 3 b $end
 $upscope $end
 $upscope $end
 $upscope $end
@@ -43,12 +50,15 @@ b0 '
 sHdlNone\x20(0) (
 0)
 0*
-sA\x20(0) +
+sHdlNone\x20(0) +
 0,
 0-
-0.
+sA\x20(0) .
 0/
-b0 0
+00
+01
+02
+b0 3
 $end
 #1000000
 1!
@@ -66,7 +76,8 @@ b1 $
 1!
 b1 &
 sHdlSome\x20(1) (
-sB\x20(1) +
+sHdlSome\x20(1) +
+sB\x20(1) .
 #6000000
 0#
 b0 $
@@ -85,8 +96,10 @@ b11 '
 1*
 1,
 1-
-1.
 1/
+10
+11
+12
 #10000000
 0!
 #11000000
@@ -101,8 +114,11 @@ b1111 '
 sHdlNone\x20(0) (
 0)
 0*
-sC\x20(2) +
-b11 0
+sHdlNone\x20(0) +
+0,
+0-
+sC\x20(2) .
+b11 3
 #14000000
 0!
 #15000000