gccrs: Parse exclusive range pattern

Exclusive range pattern were not handled by the parser as this an
experimental feature.

gcc/rust/ChangeLog:

	* ast/rust-pattern.cc (tokenid_to_rangekind): Add a new function to
	get a range kind from the current token type.
	(RangePattern::as_string): Change the string representation for range
	pattern in order to handle excluded ranges.
	* ast/rust-pattern.h (enum class): Add new enum class to differentiate
	range kinds.
	(tokenid_to_rangekind): New prototype for a function that converts a
	token id to it's corresponding range kind.
	(class RangePattern): Change the class to accept a range kind instead
	of an ellipsis boolean.
	* hir/rust-ast-lower-pattern.cc (ASTLoweringPattern::visit): Abort
	when an excluded pattern has been found as we do not handle their
	lowering yet.
	* parse/rust-parse-impl.h (Parser::parse_literal_or_range_pattern):
	Parse excluded range patterns.
	(Parser::parse_pattern_no_alt): Likewise.
	(Parser::parse_ident_leading_pattern): Likewise.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

0 files changed, 0 insertions, 0 deletions