feat(html/parser): Allow self-closing /> on non-void HTML elements via a flag (#8460)

Author: phoenix-ru

crates/swc_html_codegen/tests/fixture.rs

@@ -638,6 +638,7 @@ fn html5lib_tests_verify(input: PathBuf) {
     let parser_config = ParserConfig {
         scripting_enabled,
         iframe_srcdoc: false,
+        allow_self_closing: false,
     };
     let codegen_config = CodegenConfig {
         minify: false,

crates/swc_html_parser/src/parser/mod.rs

@@ -721,6 +721,7 @@ fn html5lib_test_tree_construction(input: PathBuf) {
         let config = ParserConfig {
             scripting_enabled,
             iframe_srcdoc: false,
+            allow_self_closing: false,
         };
         let mut parser = Parser::new(lexer, config);