lower precedence of postfix ... fixes JuliaLang#3456

it's very unlikely that any code depends on the old parsing.

src/julia-parser.scm

@@ -504,6 +504,7 @@
  (loop (list* (down s) loc ex) #f))
  (loop (cons (down s) ex) #f)))))))))
 
+; parse ranges and postfix ...
 ; colon is strange; 3 arguments with 2 colons yields one call:
 ; 1:2 => (: 1 2)
 ; 1:2:3 => (: 1 2 3)
@@ -542,6 +543,9 @@
  (if first?
  (loop (list t ex argument) #f)
  (loop (append ex (list argument)) #t)))))
+ ((eq? t '...)
+ (take-token s)
+ (list '... ex))
  (else ex)))))
 
 ; the principal non-terminals follow, in increasing precedence order
@@ -704,14 +708,11 @@
  (else
  (parse-juxtapose (parse-factor s) s)))))
 
-; handle ^, .^, and postfix ...
+; handle ^ and .^
 (define (parse-factor-h s down ops)
  (let ((ex (down s)))
  (let ((t (peek-token s)))
- (cond ((eq? t '...)
- (take-token s)
- (list '... ex))
- ((not (memq t ops))
+ (cond ((not (memq t ops))
  ex)
  (else
  (list 'call