MFC r276196, r276197, r276198, r276202, r276203, r276204:

MFC r276196, r276197, r276198, r276202, r276203, r276204:

  Change the style of the DO_AST macro to match the others

  Remove _PROF_PROLOGUE from the EENTRY() macros.

  Stylish changes... put tabs where they need to be in macros, move lines
  around so that related things are more grouped together, rewrite comments.

  Fix the GLOBAL macro so it works (upper vs lowercase X), use it in _EENTRY.

  Create 'L' variants of all the ENTRY macros for file-static/local symbols.

git-svn-id: svn://svn.freebsd.org/base/stable/10@278629 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f