3 files changed, 19 insertions, 7 deletions

diff --git a/cli/tsc/99_main_compiler.js b/cli/tsc/99_main_compiler.js
index e246d5d0c..a2079c01e 100644
--- a/cli/tsc/99_main_compiler.js
+++ b/cli/tsc/99_main_compiler.js
@@ -1138,6 +1138,7 @@ delete Object.prototype.__proto__;
         `${ASSETS_URL_PREFIX}${specifier}`,
         ts.ScriptTarget.ESNext,
       ),
+      `failed to load '${ASSETS_URL_PREFIX}${specifier}'`,
     );
   }
   // this helps ensure as much as possible is in memory that is re-usable
@@ -1148,7 +1149,10 @@ delete Object.prototype.__proto__;
     options: SNAPSHOT_COMPILE_OPTIONS,
     host,
   });
-  assert(ts.getPreEmitDiagnostics(TS_SNAPSHOT_PROGRAM).length === 0);
+  assert(
+    ts.getPreEmitDiagnostics(TS_SNAPSHOT_PROGRAM).length === 0,
+    "lib.d.ts files have errors",
+  );
 
   // remove this now that we don't need it anymore for warming up tsc
   sourceFileCache.delete(buildSpecifier);
diff --git a/cli/tsc/dts/lib.deno.ns.d.ts b/cli/tsc/dts/lib.deno.ns.d.ts
index e51e9736a..08c8e9e9d 100644
--- a/cli/tsc/dts/lib.deno.ns.d.ts
+++ b/cli/tsc/dts/lib.deno.ns.d.ts
@@ -2,6 +2,7 @@
 
 /// <reference no-default-lib="true" />
 /// <reference lib="esnext" />
+/// <reference lib="esnext.disposable" />
 /// <reference lib="deno.net" />
 
 /** Deno provides extra properties on `import.meta`. These are included here
@@ -2177,7 +2178,8 @@ declare namespace Deno {
       WriterSync,
       Seeker,
       SeekerSync,
-      Closer {
+      Closer,
+      Disposable {
     /** The resource ID associated with the file instance. The resource ID
      * should be considered an opaque reference to resource. */
     readonly rid: number;
@@ -2451,6 +2453,8 @@ declare namespace Deno {
      * ```
      */
     close(): void;
+
+    [Symbol.dispose](): void;
   }
 
   /**
@@ -3831,7 +3835,7 @@ declare namespace Deno {
    *
    * @category File System
    */
-  export interface FsWatcher extends AsyncIterable<FsEvent> {
+  export interface FsWatcher extends AsyncIterable<FsEvent>, Disposable {
     /** The resource id. */
     readonly rid: number;
     /** Stops watching the file system and closes the watcher resource. */
@@ -4284,7 +4288,7 @@ declare namespace Deno {
    *
    * @category Sub Process
    */
-  export class ChildProcess {
+  export class ChildProcess implements Disposable {
     get stdin(): WritableStream<Uint8Array>;
     get stdout(): ReadableStream<Uint8Array>;
     get stderr(): ReadableStream<Uint8Array>;
@@ -4307,6 +4311,8 @@ declare namespace Deno {
     /** Ensure that the status of the child process does not block the Deno
      * process from exiting. */
     unref(): void;
+
+    [Symbol.dispose](): void;
   }
 
   /**
@@ -5258,7 +5264,7 @@ declare namespace Deno {
    * requests on the HTTP server connection.
    *
    * @category HTTP Server */
-  export interface HttpConn extends AsyncIterable<RequestEvent> {
+  export interface HttpConn extends AsyncIterable<RequestEvent>, Disposable {
     /** The resource ID associated with this connection. Generally users do not
      * need to be aware of this identifier. */
     readonly rid: number;
@@ -5911,7 +5917,7 @@ declare namespace Deno {
    *
    * @category HTTP Server
    */
-  export interface HttpServer {
+  export interface HttpServer extends AsyncDisposable {
     /** A promise that resolves once server finishes - eg. when aborted using
      * the signal passed to {@linkcode ServeOptions.signal}.
      */
diff --git a/cli/tsc/dts/lib.deno.unstable.d.ts b/cli/tsc/dts/lib.deno.unstable.d.ts
index c758e620c..3bdba510b 100644
--- a/cli/tsc/dts/lib.deno.unstable.d.ts
+++ b/cli/tsc/dts/lib.deno.unstable.d.ts
@@ -1749,7 +1749,7 @@ declare namespace Deno {
    *
    * @category KV
    */
-  export class Kv {
+  export class Kv implements Disposable {
     /**
      * Retrieve the value and versionstamp for the given key from the database
      * in the form of a {@linkcode Deno.KvEntryMaybe}. If no value exists for
@@ -1945,6 +1945,8 @@ declare namespace Deno {
      * operations immediately.
      */
     close(): void;
+
+    [Symbol.dispose](): void;
   }
 
   /** **UNSTABLE**: New API, yet to be vetted.