Returns an array of type-ids representing the exception specification. The return value
	 * {@link #NO_EXCEPTION_SPECIFICATION} indicates that no exceptions are specified, whereas
	 * {@link IASTTypeId#EMPTY_TYPEID_ARRAY} is used for an empty exception specification.
Returns an array of type-ids representing the exception specification. The return value
	 * {@link #NO_EXCEPTION_SPECIFICATION} indicates that no exceptions are specified, whereas
	 * {@link IASTTypeId#EMPTY_TYPEID_ARRAY} is used for an empty exception specification. | ICPPASTFunctionDeclarator.java