Merge pull request JuliaLang#11416 from fcard/patch-1

RFC: Fixes JuliaLang#11413

base/show.jl

@@ -484,13 +484,8 @@ function show_unquoted(io::IO, ex::Expr, indent::Int, prec::Int)
  if is(head, :tuple) && nargs == 1; print(io, ','); end
  head !== :row && print(io, cl)
 
- # function declaration (like :call but always printed with parens)
- # (:calldecl is a "fake" expr node created when we find a :function expr)
- elseif head == :calldecl && nargs >= 1
- show_call(io, head, args[1], args[2:end], indent)
-
  # function call
- elseif haskey(expr_calls, head) && nargs >= 1 # :call/:ref/:curly
+ elseif head == :call && nargs >= 1
  func = args[1]
  func_prec = operator_precedence(func)
  func_args = args[2:end]
@@ -535,11 +530,15 @@ function show_unquoted(io::IO, ex::Expr, indent::Int, prec::Int)
  show_enclosed_list(io, op, func_args, ",", cl, indent)
  end
 
- # normal function (i.e. "f(x,y)" or "A[x,y]")
+ # normal function (i.e. "f(x,y)")
  else
  show_call(io, head, func, func_args, indent)
  end
 
+ # other call-like expressions ("A[1,2]", "T{X,Y}")
+ elseif haskey(expr_calls, head) && nargs >= 1 # :ref/:curly/:calldecl
+ show_call(io, head, ex.args[1], ex.args[2:end], indent)
+
  # comprehensions
  elseif (head === :typed_comprehension || head === :typed_dict_comprehension) && length(args) == 3
  isdict = (head === :typed_dict_comprehension)

test/show.jl

@@ -233,3 +233,8 @@ end
 
 # issue #9865
 @test ismatch(r"^Set\(\[.+….+\]\)$", replstr(Set(1:100)))
+
+# issue 11413
+@test string(:(*{1,2})) == "*{1,2}"
+@test string(:(*{1,x})) == "*{1,x}"
+@test string(:(-{x})) == "-{x}"