Add types to module initialize func

codecs/mozjpeg_enc/mozjpeg_enc.d.ts

@@ -1 +1 @@
-export default function(opts: {}): EmscriptenWasm.Module;
+export default function(opts: EmscriptenWasm.ModuleOpts): EmscriptenWasm.Module;

emscripten-wasm.d.ts

@@ -1,8 +1,16 @@
 // These types roughly model the object that the JS files generated by Emscripten define. Copied from https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/emscripten/index.d.ts and turned into a type definition rather than a global to support our way of using Emscripten.
-// TODO(surma@): Upstream this?
+// TODO(@surma): Upstream this?
 declare namespace EmscriptenWasm {
   type EnvironmentType = "WEB" | "NODE" | "SHELL" | "WORKER";
 
+  // Options object for modularized Emscripten files. Shoe-horned by @surma.
+  // FIXME: This an incomplete definition!
+  interface ModuleOpts {
+    noInitialRun?: boolean;
+    locateFile?: (url: string) => string;
+    onRuntimeInitialized?: () => void;
+  }
+
   interface Module {
     print(str: string): void;
     printErr(str: string): void;
@@ -92,7 +100,7 @@ declare namespace EmscriptenWasm {
     _malloc(size: number): number;
     _free(ptr: number): void;
 
-    // Augmentations below by surma@
+    // Augmentations below by @surma.
     onRuntimeInitialized: () => void | null;
   }
 }