fix: allow using as with multiple <script> blocks (#3733)

Co-authored-by: Johnson Chu <[email protected]>

packages/language-core/src/generators/script.ts

@@ -248,19 +248,6 @@ export function generate(
 			FileRangeCapabilities.full,
 		]);
 	}
-	function generateExportDefaultEndMapping() {
-		if (!scriptSetup) {
-			return;
-		}
-		// fix https://github.com/vuejs/language-tools/issues/1127
-		codes.push([
-			'',
-			'scriptSetup',
-			scriptSetup.content.length,
-			{ diagnostic: true },
-		]);
-		codes.push(`\n`);
-	}
 	function generateScriptSetupAndTemplate() {
 
 		if (!scriptSetup || !scriptSetupRanges) {
@@ -400,8 +387,6 @@ export function generate(
 			codes.push(`})()`);
 		}
 
-		generateExportDefaultEndMapping();
-
 		if (scriptSetupGeneratedOffset !== undefined) {
 			for (const defineProp of scriptSetupRanges.defineProp) {
 				if (!defineProp.name) {
@@ -580,9 +565,6 @@ declare function defineProp<T>(value?: T | (() => T), required?: boolean, rest?:
 				codes.push(`;\n`);
 			}
 		}
-		if (mode === 'export') {
-			generateExportDefaultEndMapping();
-		}
 
 		return scriptSetupGeneratedOffset;
 	}

test-workspace/tsc/vue3/#3732/child.vue

@@ -0,0 +1,5 @@
+<script setup lang="ts"></script>
+
+<script lang="ts">
+export default {} as any as 1;
+</script>

test-workspace/tsc/vue3/#3732/child2.vue

@@ -0,0 +1,5 @@
+<script setup lang="ts"></script>
+
+<script lang="ts">
+export default ({}) as any as 1;
+</script>

test-workspace/tsc/vue3/#3732/main.ts

@@ -0,0 +1,6 @@
+import { exactType } from '../../shared';
+import child from './child.vue';
+import child2 from './child2.vue';
+
+exactType(child, 1);
+exactType(child2, 1);