c-decl.c: Update commentary, adjust blank lines throughout.

c-decl.c: Update commentary, adjust blank lines throughout.

	* c-decl.c: Update commentary, adjust blank lines throughout.
	(struct c_scope): Fix indentation.  Reorder members so
	outer-context pointers come first, booleans last.
	(duplicate_decls, define_label): Use a 'locus' variable for
	diagnostic locations in a few more places.
	(warn_if_shadowing): Un-split a conditional that fits on one line.
	(c_init_decl_processing): No need to clear current_scope and
	current_function_scope.
	(start_decl): Merge if/else if statements with same action.
	(push_parm_decl): Rename old_immediate_size_expand to use
	save_foo convention; save/restore around entire function.
	(grokdeclarator): Remove unnecessary braces.

From-SVN: r69903