* 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
