src/marpaESLIF.c: require that the left side of an exception is unique in the grammar, because exception will become part of the lexeme definition
src/marpaESLIF.c: require that the left side of an exception is unique in the grammar, because exception will become part of the lexeme definition

jddurand/c-marpaESLIF,jddurand/c-marpaESLIF,jddurand/c-marpaESLIF,jddurand/c-marpaESLIF,jddurand/c-marpaESLIF