Refactor snapshot build (#2825)

Instead of using core/snapshot_creator.rs, instead two crates are
introduced which allow building the snapshot during build.rs.

Rollup is removed and replaced with our own bundler. This removes
the Node build dependency. Modules in //js now use Deno-style imports
with file extensions, rather than Node style extensionless imports.

This improves incremental build time when changes are made to //js files
by about 40 seconds.

1 files changed, 5 insertions, 5 deletions

diff --git a/js/console.ts b/js/console.ts
index db6a87296..2ce4b20cd 100644
--- a/js/console.ts
+++ b/js/console.ts
@@ -1,9 +1,9 @@
 // Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
-import { isTypedArray } from "./util";
-import { TypedArray } from "./types";
-import { TextEncoder } from "./text_encoding";
-import { File, stdout } from "./files";
-import { cliTable } from "./console_table";
+import { isTypedArray } from "./util.ts";
+import { TypedArray } from "./types.ts";
+import { TextEncoder } from "./text_encoding.ts";
+import { File, stdout } from "./files.ts";
+import { cliTable } from "./console_table.ts";
 
 type ConsoleContext = Set<unknown>;
 type ConsoleOptions = Partial<{