When parsing wikitext like `{{func:a|b|c}}`, jqueryMsg accepted
multiple expressions in the parameters following '|' (which are
handled by templateParam()), but not in the first parameter
following ':' (which is handled by templateWithOutReplacement()).
So, `{{#FORMAL:Informal hello|{{GENDER:|Formal}} hello}}` worked,
but `{{#FORMAL:{{GENDER:|Informal}} hello|Formal hello}}` didn't.
Now they both work.
Bug: T379418
Change-Id: Ia4d57fd953dbd34e45789208ec8e765cce6ddf15
(cherry picked from commit 8b173830762738206919bd7b1a9ce3bba72dab5d)
cc98ec4e1b