OutputPage: Reduce getTitleInfo() calls (improve preloading)

OutputPage: Reduce getTitleInfo() calls (improve preloading)

* Remove filter between $moduleStyles and preloadTitleInfo().
  Previously, this was filtering out wiki modules created by
  gadgets and extensions. Still causing a couple of direct queries
  from getTitleInfo().

* Store __METHOD__ in $fname outside getWithSetCallback.
  This way queries are logged as either getTitleInfo or preloadTitleInfo.
  This regressed in 0852a000a5, after which the latter was logged
  as "::{closure}".

Change-Id: I454e43f43f8ad3270b86f4cfdbd68192c305cc07