move max uncompressed message size out of the session

src/harness/harness.ts

@@ -71,9 +71,11 @@ namespace Utils {
     }
 
     export function compress(s: string): any {
-        return Buffer ? new Buffer(s, "utf8") : { s, length: s.length };
+        return Buffer ? new Buffer(s, "utf8") : { data: s, length: s.length };
     }
 
+    export const maxUncompressedMessageSize = Number.MAX_VALUE;
+
     export function evalFile(fileContents: string, fileName: string, nodeContext?: any) {
         const environment = getExecutionEnvironment();
         switch (environment) {

src/harness/harnessLanguageService.ts

@@ -693,6 +693,7 @@ namespace Harness.LanguageService {
                 { isCancellationRequested: () => false },
                 /*useOneInferredProject*/ false,
                 Utils.byteLength,
+                Utils.maxUncompressedMessageSize,
                 Utils.compress,
                 process.hrtime, serverHost);
 

src/server/server.ts

@@ -20,6 +20,8 @@ namespace ts.server {
         return { data, length: data.length, compressionKind: "gzip" };
     }
 
+    const maxUncompressedMessageSize = 84000;
+
     class Logger implements ts.server.Logger {
         private fd = -1;
         private seq = 0;
@@ -99,7 +101,7 @@ namespace ts.server {
 
     class IOSession extends Session {
         constructor(host: ServerHost, cancellationToken: HostCancellationToken, useSingleInferredProject: boolean, logger: ts.server.Logger) {
-            super(host, cancellationToken, useSingleInferredProject, Buffer.byteLength, compress, process.hrtime, logger);
+            super(host, cancellationToken, useSingleInferredProject, Buffer.byteLength, maxUncompressedMessageSize, compress, process.hrtime, logger);
         }
 
         exit() {

src/server/session.ts

@@ -199,6 +199,7 @@ namespace ts.server {
             cancellationToken: HostCancellationToken,
             useSingleInferredProject: boolean,
             private byteLength: (buf: string, encoding?: string) => number,
+            private maxUncompressedMessageSize: number,
             private compress: (s: string) => CompressedData,
             private hrtime: (start?: number[]) => number[],
             private logger: Logger) {