named parameters breaks old behavior

[raylu]

the named parameters implementation (introduced in #619, 1857b7c) breaks the following code:

.box-shadow(@shadow) {
  -webkit-box-shadow: @shadow;
     -moz-box-shadow: @shadow;
          box-shadow: @shadow;
}

a {
    .box-shadow(inset 0 1px rgba(255, 255, 255, 0.15);
}

with

Error: Expected )
    at Object.<anonymous> (/home/raylu/src/less.js/lib/less/parser.js:786:45)
    at $ (/home/raylu/src/less.js/lib/less/parser.js:122:24)
    at Object.primary (/home/raylu/src/less.js/lib/less/parser.js:493:32)
    at $ (/home/raylu/src/less.js/lib/less/parser.js:122:24)
    at Object.block (/home/raylu/src/less.js/lib/less/parser.js:1017:42)
    at $ (/home/raylu/src/less.js/lib/less/parser.js:122:24)
    at Object.ruleset (/home/raylu/src/less.js/lib/less/parser.js:1036:54)
    at $ (/home/raylu/src/less.js/lib/less/parser.js:122:24)
    at Object.primary (/home/raylu/src/less.js/lib/less/parser.js:492:80)
    at $ (/home/raylu/src/less.js/lib/less/parser.js:122:24)

which compiled fine in v1.3 (54e1a6b) and even in the commit right before it (cb78933)

[lukeapage]

do you realise your example is missing a bracket? does that fix it?

[raylu]

Oh... oops...