fix IR showing not to show TypedSlot type twice (#38961)

* fix IR showing not to show TypedSlot type twice

* Update base/compiler/ssair/show.jl

Co-authored-by: Jameson Nash <vtjnash@gmail.com>

Co-authored-by: Keno Fischer <keno@juliacomputing.com>
Co-authored-by: Jameson Nash <vtjnash@gmail.com>

Author: 3 people

base/compiler/ssair/show.jl

@@ -64,6 +64,10 @@ function print_stmt(io::IO, idx::Int, @nospecialize(stmt), used::BitSet, maxleng
         show_unquoted_phinode(io, stmt, indent, "#")
     elseif stmt isa GotoIfNot
         show_unquoted_gotoifnot(io, stmt, indent, "#")
+    elseif stmt isa TypedSlot
+        # call `show` with the type set to Any so it will not be shown, since
+        # we will show the type ourselves.
+        show_unquoted(io, SlotNumber(stmt.id), indent, show_type ? prec_decl : 0)
     # everything else in the IR, defer to the generic AST printer
     else
         show_unquoted(io, stmt, indent, show_type ? prec_decl : 0)