hdl.ast: deprecate Repl and remove from AST; add Value.replicate.

amaranth/vendor/intel.py

@@ -375,7 +375,7 @@ class IntelPlatform(TemplatedPlatform):
     def _get_oereg(m, pin):
         # altiobuf_ requires an output enable signal for each pin, but pin.oe is 1 bit wide.
         if pin.xdr == 0:
-            return Repl(pin.oe, pin.width)
+            return pin.oe.replicate(pin.width)
         elif pin.xdr in (1, 2):
             oe_reg = Signal(pin.width, name="{}_oe_reg".format(pin.name))
             oe_reg.attrs["useioff"] = "1"

amaranth/vendor/lattice_ecp5.py

@@ -528,7 +528,7 @@ class LatticeECP5Platform(TemplatedPlatform):
             if "o" in pin.dir:
                 o = pin_o
             if pin.dir in ("oe", "io"):
-                t = Repl(~pin.oe, pin.width)
+                t = (~pin.oe).replicate(pin.width)
         elif pin.xdr == 1:
             if "i" in pin.dir:
                 get_ireg(pin.i_clk, i, pin_i)