fix(language-core): use keywords instead of semicolons to separate script sections (#5217)

Co-authored-by: KazariEX <1364035137@qq.com>

Author: johnsoncodehk

packages/language-core/lib/codegen/script/index.ts

@@ -115,17 +115,15 @@ export function* generateScript(options: ScriptCodegenOptions): Generator<Code,
 		}
 		else {
 			yield generateSfcBlockSection(options.sfc.script, 0, options.sfc.script.content.length, codeFeatures.all);
+			yield* generateScriptSectionPartiallyEnding(options.sfc.script.name, options.sfc.script.content.length, '#3632/script.vue');
 		}
 	}
 	else if (options.sfc.scriptSetup && options.scriptSetupRanges) {
 		yield* generateScriptSetup(options, ctx, options.sfc.scriptSetup, options.scriptSetupRanges);
 	}
 
-	if (options.sfc.script) {
-		yield* generateScriptSectionPartiallyEnding(options.sfc.script.name, options.sfc.script.content.length, '#3632/script.vue');
-	}
 	if (options.sfc.scriptSetup) {
-		yield* generateScriptSectionPartiallyEnding(options.sfc.scriptSetup.name, options.sfc.scriptSetup.content.length, '#4569/main.vue');
+		yield* generateScriptSectionPartiallyEnding(options.sfc.scriptSetup.name, options.sfc.scriptSetup.content.length, '#4569/main.vue', ';');
 	}
 
 	if (!ctx.generatedTemplate) {
@@ -148,8 +146,13 @@ export function* generateScript(options: ScriptCodegenOptions): Generator<Code,
 	return ctx;
 }
 
-export function* generateScriptSectionPartiallyEnding(source: string, end: number, mark: string): Generator<Code> {
-	yield `;`;
+export function* generateScriptSectionPartiallyEnding(
+	source: string,
+	end: number,
+	mark: string,
+	delimiter = 'debugger'
+): Generator<Code> {
+	yield delimiter;
 	yield ['', source, end, codeFeatures.verification];
 	yield `/* PartiallyEnd: ${mark} */${newLine}`;
 }

packages/language-core/lib/codegen/script/scriptSetup.ts

@@ -31,15 +31,8 @@ export function* generateScriptSetup(
 ): Generator<Code> {
 	if (scriptSetup.generic) {
 		if (!options.scriptRanges?.exportDefault) {
-			if (options.sfc.scriptSetup) {
-				// #4569
-				yield [
-					'',
-					'scriptSetup',
-					options.sfc.scriptSetup.content.length,
-					codeFeatures.verification,
-				];
-			}
+			// #4569
+			yield ['', 'scriptSetup', 0, codeFeatures.verification];
 			yield `export default `;
 		}
 		yield `(`;