fix(@angular-devkit/build-angular): limit advanced terser passes to two

Limiting the terser passes to two helps to workaround an issue with terser wherein terser will errantly inline a function argument containing a `yield` expression inside an inner arrow function.  This results in a syntax error since the yield expression is no longer within the scope of a generator.

Author: clydin

packages/angular_devkit/build_angular/src/webpack/plugins/javascript-optimizer-worker.ts

@@ -93,7 +93,7 @@ async function optimizeWithTerser(
     { [name]: code },
     {
       compress: {
-        passes: advanced ? 3 : 1,
+        passes: advanced ? 2 : 1,
         pure_getters: advanced,
       },
       ecma: target,