Move functions from semantic.el to analyze.el to avoid warnings

Move functions from semantic.el to analyze.el to avoid warnings

* lisp/cedet/semantic.el (semantic-analyze-completion-at-point-function)
(semantic-analyze-notc-completion-at-point-function)
(semantic-analyze-nolongprefix-completion-at-point-function): Add
autoloads for the moved functions.

* lisp/cedet/semantic/analyze.el
(semantic-analyze-completion-at-point-function)
(semantic-analyze-notc-completion-at-point-function)
(semantic-analyze-nolongprefix-completion-at-point-function): Move
here from semantic.el to avoid getting compilation warnings about
unknown slot `bounds'.