* parse.y (trap_overflow_corner_case): New rule.
	(unary_expression): Use it.
	* lex.c (java_init_lex): Don't set minus_seen.
	(yylex): Don't use minus_seen.  Communicate overflow to parser for
	it to handle.
	(error_if_numeric_overflow): New function.
	* parse.h (minus_seen): Removed field.
	(JAVA_RADIX10_FLAG): New define.

From-SVN: r46846