Function isAttributeLike

Type check guard to check if provided AST node is AST.AttributeLike.

• Standard attribute (AST.Attribute) - https://developer.mozilla.org/en-US/docs/Glossary/Attribute
• Spread attribute (AST.SpreadAttribute) - https://svelte.dev/docs/basic-markup#attributes-and-props
• Directive (AST.Directive) - can be for:
  • component - https://svelte.dev/docs/component-directives
  • element - https://svelte.dev/docs/element-directives