Export ts namespace from tsserver for hacky-post patching

Unlike our other exectuables, tsserver is used in web, which means that
there actually would have been a "ts" variable declared for those users
(e.g. in a web worker). It looks like VS Code needs this variable to be
declared, so change this bundle to look the same as other libraries.

Note that in Node, the IIFE will never actually return, so this can have
no effect. On web, it will return in order to yield control back to the
event loop (as on web, postMessage is used to communicate).

Author: jakebailey

src/tsserver/_namespaces/ts.server.ts

@@ -5,4 +5,4 @@ export * from "../../server/_namespaces/ts.server";
 export * from "../../webServer/_namespaces/ts.server";
 export * from "../nodeServer";
 export * from "../webServer";
-export * from "../server";
+export * from "../common";

src/tsserver/common.ts

@@ -0,0 +1,27 @@
+import {
+    Logger, LogLevel, ServerCancellationToken, StartSessionOptions,
+} from "./_namespaces/ts.server";
+import { LanguageServiceMode } from "./_namespaces/ts";
+
+/** @internal */
+export function getLogLevel(level: string | undefined) {
+    if (level) {
+        const l = level.toLowerCase();
+        for (const name in LogLevel) {
+            if (isNaN(+name) && l === name.toLowerCase()) {
+                return LogLevel[name] as any as LogLevel;
+            }
+        }
+    }
+    return undefined;
+}
+
+/** @internal */
+export interface StartInput {
+    args: readonly string[];
+    logger: Logger;
+    cancellationToken: ServerCancellationToken;
+    serverMode: LanguageServiceMode | undefined;
+    unknownServerMode?: string;
+    startSession: (option: StartSessionOptions, logger: Logger, cancellationToken: ServerCancellationToken) => void;
+}

src/tsserver/server.ts

@@ -1,8 +1,9 @@
 import {
-    emptyArray, findArgument, hasArgument, initializeNodeSystem, initializeWebSystem, Logger, LogLevel, Msg,
-    ServerCancellationToken, StartSessionOptions,
+    emptyArray, findArgument, hasArgument, initializeNodeSystem, initializeWebSystem, Msg,
+    StartInput,
 } from "./_namespaces/ts.server";
-import { Debug, getNodeMajorVersion, LanguageServiceMode, setStackTraceLimit, sys, version } from "./_namespaces/ts";
+import { Debug, getNodeMajorVersion, setStackTraceLimit, sys, version } from "./_namespaces/ts";
+export * from "./_namespaces/ts";
 
 declare const addEventListener: any;
 declare const removeEventListener: any;
@@ -14,28 +15,7 @@ function findArgumentStringArray(argName: string): readonly string[] {
     return arg.split(",").filter(name => name !== "");
 }
 
-/** @internal */
-export function getLogLevel(level: string | undefined) {
-    if (level) {
-        const l = level.toLowerCase();
-        for (const name in LogLevel) {
-            if (isNaN(+name) && l === name.toLowerCase()) {
-                return LogLevel[name] as any as LogLevel;
-            }
-        }
-    }
-    return undefined;
-}
 
-/** @internal */
-export interface StartInput {
-    args: readonly string[];
-    logger: Logger;
-    cancellationToken: ServerCancellationToken;
-    serverMode: LanguageServiceMode | undefined;
-    unknownServerMode?: string;
-    startSession: (option: StartSessionOptions, logger: Logger, cancellationToken: ServerCancellationToken) => void;
-}
 function start({ args, logger, cancellationToken, serverMode, unknownServerMode, startSession: startServer }: StartInput, platform: string) {
     const syntaxOnly = hasArgument("--syntaxOnly");