cobol: Multiple PRs; formatting; exception processing.

The PRs mentined here have either been previously fixed, or are fixed by
this commit.

gcc/cobol/ChangeLog:

	PR cobol/119770
	PR cobol/119772
	PR cobol/119790
	PR cobol/119771
	PR cobol/119810
	PR cobol/119335
	PR cobol/119632
	* cdf-copy.cc (GLOB_BRACE): Eliminate <glob.h>.
	* cdfval.h (_CDF_VAL_H_): Switch to C++ headers.
	* copybook.h (class copybook_elem_t): Eliminate <glob.h>.
	(class copybook_t): Likewise.
	* gcobc: Numerous changes to improve utility.
	* gcobol.1: Correct names in the list of functions.
	* genapi.cc (compare_binary_binary): Use has_attr() function.
	* lexio.cc (cdftext::lex_open): Typo; filename logic.
	(cdftext::process_file): Filename logic.
	* parse.y: Numerous parsing changes.
	* parse_ante.h (new_alphanumeric): C++ includes; changes to temporaries.
	(new_tempnumeric): Likewise.
	(new_tempnumeric_float): Likewise.
	(set_real_from_capacity): Created.
	* scan.l: Use yy_pop_state().
	* scan_ante.h (typed_name): Find figconst from data.initial.
	* symbols.cc (symbol_valid_udf_args): Eliminate.
	(symbols_update): figconst processing.
	(new_temporary_impl): For functions, set .initial to function name.
	(temporaries_t::acquire): Likewise.
	(new_alphanumeric): Likewise.
	(new_temporary): Likewise.
	* symbols.h (_SYMBOLS_H_): Use C++ includes.
	(cbl_figconst_tok): Change handling of figconst.
	(cbl_figconst_field_of): Change handling of figconst.
	(symbol_valid_udf_args): Eliminate.
	* symfind.cc (symbol_match2): Change declaration.
	(symbol_match): Change declaration.

libgcobol/ChangeLog:

	* charmaps.cc: Switch to C++ includes.
	* common-defs.h: Likewise.
	* constants.cc: Likewise.
	* ec.h: Remove #include <assert.h>.
	* gcobolio.h (GCOBOLIO_H_): Switch to C++ includes.
	* gfileio.cc: Likewise.
	* gmath.cc: Likewise.
	* intrinsic.cc: Comment formatting; C++ includes.
	* io.cc: C++ includes.
	* libgcobol.cc: (__gg__stash_exceptions): Eliminate.
	* valconv.cc: Switch to C++ includes.

Co-Authored-By: James K. Lowden <jklowden@cobolworx.com>
(cherry picked from commit fba34a0cc55488ad89becf81cf2c9ac517d244d4)