c-typeck.c (parser_build_binary_op): Don't call the function unsigned_conversion_warning to spot operand/result type...


	* c-typeck.c (parser_build_binary_op): Don't call the function
	unsigned_conversion_warning to spot operand/result type overflow.
	(build_binary_op): Instead, call convert_and_check instead of
	convert to report the problem when the operands are promoted.
	* c-common.c (unsigned_conversion_warning): Make static.
	* c-common.h (unsigned_conversion_warning): Delete prototype.

	* gcc.dg/Wconversion-3.c: New test case.
	* gcc.dg/Wconversion-4.c: Likewise.


Co-Authored-By: Joseph Myers <joseph@codesourcery.com>

From-SVN: r113418