c-parse.in (lineno_stmt_decl_or_labels_ending_decl): Also warn when warn_declaration_after_statement.

	* c-parse.in (lineno_stmt_decl_or_labels_ending_decl): Also warn
	when warn_declaration_after_statement.  Call pedwarn_c90, not
	pedwarn.  Correct message: it's "ISO C90", not "ISO C89".
	* c-common.c (warn_declaration_after_statement): Define.
	* c-common.h (warn_declaration_after_statement): Declare.
	* c.opt (Wdeclaration-after-statement): New.
	* c-errors.c (pedwarn_c90): New function.
	* c-opts.c (c_common_handle_option) <case
	OPT_Wdeclaration_after_statement>: New.
	* c-tree.h (pedwarn_c90): Declare.
	* doc/invoke.texi (Option Summary): Document
	-Wdeclaration-after-statement.
	(Warning Options): Ditto.

Co-Authored-By: Michael Culbertson <Michael.J.Culbertson@wheaton.edu>

From-SVN: r69899