openmp: Adjust position of OMP_CLAUSE_INDIRECT in OpenMP clauses

openmp: Adjust position of OMP_CLAUSE_INDIRECT in OpenMP clauses

Move OMP_CLAUSE_INDIRECT so that it is outside of the range checked by
OMP_CLAUSE_SIZE and OMP_CLAUSE_DECL.

2024-01-03  Kwok Cheung Yeung  <kcy@codesourcery.com>

	gcc/c/
	* c-parser.cc (c_parser_omp_clause_name): Move handling of indirect
	clause to correspond to alphabetical order.

	gcc/cp/
	* parser.cc (cp_parser_omp_clause_name): Move handling of indirect
	clause to correspond to alphabetical order.

	gcc/
	* tree-core.h (enum omp_clause_code): Move OMP_CLAUSE_INDIRECT to before
	OMP_CLAUSE__SIMDUID_.
	* tree.cc (omp_clause_num_ops): Update position of entry for
	OMP_CLAUSE_INDIRECT to correspond with omp_clause_code.
	(omp_clause_code_name): Likewise.