(fix) use ts only through injection

packages/typescript-plugin/src/language-service/completions.ts

@@ -1,11 +1,13 @@
 import { basename, dirname, extname } from 'path';
-import ts from 'typescript/lib/tsserverlibrary';
+import type ts from 'typescript';
 import { Logger } from '../logger';
 import { isSvelteFilePath, replaceDeep } from '../utils';
 
+type _ts = typeof ts;
+
 const componentPostfix = '__SvelteComponent_';
 
-export function decorateCompletions(ls: ts.LanguageService, logger: Logger): void {
+export function decorateCompletions(ls: ts.LanguageService, ts: _ts, logger: Logger): void {
     const getCompletionsAtPosition = ls.getCompletionsAtPosition;
     ls.getCompletionsAtPosition = (fileName, position, options) => {
         const completions = getCompletionsAtPosition(fileName, position, options);

packages/typescript-plugin/src/language-service/index.ts

@@ -42,7 +42,7 @@ function decorateLanguageServiceInner(
     decorateRename(ls, snapshotManager, logger);
     decorateDiagnostics(ls, logger);
     decorateFindReferences(ls, snapshotManager, logger);
-    decorateCompletions(ls, logger);
+    decorateCompletions(ls, typescript, logger);
     decorateGetDefinition(ls, snapshotManager, logger);
     decorateGetImplementation(ls, snapshotManager, logger);
     decorateUpdateImports(ls, snapshotManager, logger);

packages/typescript-plugin/src/module-loader.ts

@@ -102,7 +102,7 @@ export function patchModuleLoader(
     project: ts.server.Project,
     configManager: ConfigManager
 ): void {
-    const svelteSys = createSvelteSys(logger);
+    const svelteSys = createSvelteSys(typescript, logger);
     const moduleCache = new ModuleResolutionCache(project.projectService);
     const origResolveModuleNames = lsHost.resolveModuleNames?.bind(lsHost);
     const origResolveModuleNamLiterals = lsHost.resolveModuleNameLiterals?.bind(lsHost);

packages/typescript-plugin/src/svelte-sys.ts

@@ -1,11 +1,13 @@
-import ts from 'typescript';
+import type ts from 'typescript';
 import { Logger } from './logger';
 import { ensureRealSvelteFilePath, isVirtualSvelteFilePath, toRealSvelteFilePath } from './utils';
 
+type _ts = typeof ts;
+
 /**
  * This should only be accessed by TS svelte module resolution.
  */
-export function createSvelteSys(logger: Logger) {
+export function createSvelteSys(ts: _ts, logger: Logger) {
     const svelteSys: ts.System = {
         ...ts.sys,
         fileExists(path: string) {