parser.c (cp_parser_binary_expression): Increment c_inhibit_evaluation_warnings while parsing the right hand side of...

cp/:
	* parser.c (cp_parser_binary_expression): Increment
	c_inhibit_evaluation_warnings while parsing the right hand side of
	"true || x" or "false && x".
	* typeck.c (cp_build_binary_op): Only call warn_for_sign_compare
	if c_inhibit_evaluation_warnings is zero.
testsuite/:
	* g++.dg/warn/skip-2.C: New testcase.

From-SVN: r148949