* 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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@113418 138bc75d-0d04-0410-961f-82ee72b054a4