Migrate `replace_is_method_with_if_let_method` Assist to use `SyntaxFactory`#20134

lnicola merged 2 commits intorust-lang:masterrust-lang/rust-analyzer:masterfrom

Hmikihiro:migrate-replace_is_method_with_if_let_method-to-SyntaxFactoryHmikihiro/rust-analyzer:migrate-replace_is_method_with_if_let_method-to-SyntaxFactoryCopy head branch name to clipboard