ast: collector: visit InlineAsm node during ast dump

ast: collector: visit InlineAsm node during ast dump

gcc/rust/ChangeLog:

	* ast/rust-ast-collector.cc (TokenCollector::visit): Implement for InlineAsm.
	* ast/rust-ast-full-decls.h (enum class): Move InlineAsmOption enum inside InlineAsm.
	* ast/rust-expr.h (enum class): Likewise.
	(class InlineAsm): Likewise.
	* expand/rust-macro-builtins-asm.cc (check_and_set): Likewise.
	(parse_options): Likewise.
	* expand/rust-macro-builtins-asm.h (check_and_set): Likewise.
	* hir/tree/rust-hir-expr.cc (InlineAsm::InlineAsm): Likewise.
	* hir/tree/rust-hir-expr.h: Likewise.
	* typecheck/rust-hir-type-check-expr.cc (TypeCheckExpr::visit): Likewise.