refactor(core): include_js_files! 'dir' option doesn't change specifiers (#18019)

This commit changes "include_js_files!" macro from "deno_core"
in a way that "dir" option doesn't cause specifiers to be rewritten 
to include it.

Example:
```
include_js_files! {
  dir "js",
  "hello.js",
}
```

The above definition required embedders to use:
`import ... from "internal:<ext_name>/js/hello.js"`. 
But with this change, the "js" directory in which the files are stored
is an implementation detail, which for embedders results in: 
`import ... from "internal:<ext_name>/hello.js"`.

The directory the files are stored in, is an implementation detail and 
in some cases might result in a significant size difference for the 
snapshot. As an example, in "deno_node" extension, we store the 
source code in "polyfills" directory; which resulted in each specifier 
to look like "internal:deno_node/polyfills/<module_name>", but with 
this change it's "internal:deno_node/<module_name>". 

Given that "deno_node" has over 100 files, many of them having 
several import specifiers to the same extension, this change removes
10 characters from each import specifier.

1 files changed, 10 insertions, 13 deletions

diff --git a/ext/node/polyfills/child_process.ts b/ext/node/polyfills/child_process.ts
index cc0e17ffb..fdcf32bca 100644
--- a/ext/node/polyfills/child_process.ts
+++ b/ext/node/polyfills/child_process.ts
@@ -2,7 +2,7 @@
 
 // This module implements 'child_process' module of Node.JS API.
 // ref: https://nodejs.org/api/child_process.html
-import { core } from "internal:deno_node/polyfills/_core.ts";
+import { core } from "internal:deno_node/_core.ts";
 import {
   ChildProcess,
   ChildProcessOptions,
@@ -12,13 +12,13 @@ import {
   type SpawnSyncOptions,
   type SpawnSyncResult,
   stdioStringToArray,
-} from "internal:deno_node/polyfills/internal/child_process.ts";
+} from "internal:deno_node/internal/child_process.ts";
 import {
   validateAbortSignal,
   validateFunction,
   validateObject,
   validateString,
-} from "internal:deno_node/polyfills/internal/validators.mjs";
+} from "internal:deno_node/internal/validators.mjs";
 import {
   ERR_CHILD_PROCESS_IPC_REQUIRED,
   ERR_CHILD_PROCESS_STDIO_MAXBUFFER,
@@ -26,7 +26,7 @@ import {
   ERR_INVALID_ARG_VALUE,
   ERR_OUT_OF_RANGE,
   genericNodeError,
-} from "internal:deno_node/polyfills/internal/errors.ts";
+} from "internal:deno_node/internal/errors.ts";
 import {
   ArrayIsArray,
   ArrayPrototypeJoin,
@@ -34,18 +34,15 @@ import {
   ArrayPrototypeSlice,
   ObjectAssign,
   StringPrototypeSlice,
-} from "internal:deno_node/polyfills/internal/primordials.mjs";
-import {
-  getSystemErrorName,
-  promisify,
-} from "internal:deno_node/polyfills/util.ts";
-import { createDeferredPromise } from "internal:deno_node/polyfills/internal/util.mjs";
-import process from "internal:deno_node/polyfills/process.ts";
-import { Buffer } from "internal:deno_node/polyfills/buffer.ts";
+} from "internal:deno_node/internal/primordials.mjs";
+import { getSystemErrorName, promisify } from "internal:deno_node/util.ts";
+import { createDeferredPromise } from "internal:deno_node/internal/util.mjs";
+import process from "internal:deno_node/process.ts";
+import { Buffer } from "internal:deno_node/buffer.ts";
 import {
   convertToValidSignal,
   kEmptyObject,
-} from "internal:deno_node/polyfills/internal/util.mjs";
+} from "internal:deno_node/internal/util.mjs";
 
 const MAX_BUFFER = 1024 * 1024;