ess-function-call-face inherit from font-lock-function-name-face rather
than font-lock-builtin-face

   Many themes make bultin-face bold, and that very much sucks for function name.

git-svn-id: https://svn.r-project.org/ESS/trunk@5699 0bbaf3bd-34e0-0310-bf65-c717079852d4
recognize space in "? foo"

git-svn-id: https://svn.r-project.org/ESS/trunk@5700 0bbaf3bd-34e0-0310-bf65-c717079852d4