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.

4 files changed, 22 insertions, 22 deletions

diff --git a/ext/node/polyfills/internal/readline/callbacks.mjs b/ext/node/polyfills/internal/readline/callbacks.mjs
index 3be88c899..09f686013 100644
--- a/ext/node/polyfills/internal/readline/callbacks.mjs
+++ b/ext/node/polyfills/internal/readline/callbacks.mjs
@@ -22,11 +22,11 @@
 
 "use strict";
 
-import { ERR_INVALID_ARG_VALUE, ERR_INVALID_CURSOR_POS } from "internal:deno_node/polyfills/internal/errors.ts";
+import { ERR_INVALID_ARG_VALUE, ERR_INVALID_CURSOR_POS } from "internal:deno_node/internal/errors.ts";
 
-import { validateFunction } from "internal:deno_node/polyfills/internal/validators.mjs";
+import { validateFunction } from "internal:deno_node/internal/validators.mjs";
 
-import { CSI } from "internal:deno_node/polyfills/internal/readline/utils.mjs";
+import { CSI } from "internal:deno_node/internal/readline/utils.mjs";
 
 const {
   kClearLine,
diff --git a/ext/node/polyfills/internal/readline/emitKeypressEvents.mjs b/ext/node/polyfills/internal/readline/emitKeypressEvents.mjs
index 7f68dac47..4c6dfa522 100644
--- a/ext/node/polyfills/internal/readline/emitKeypressEvents.mjs
+++ b/ext/node/polyfills/internal/readline/emitKeypressEvents.mjs
@@ -20,15 +20,15 @@
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-import { charLengthAt, CSI, emitKeys } from "internal:deno_node/polyfills/internal/readline/utils.mjs";
-import { kSawKeyPress } from "internal:deno_node/polyfills/internal/readline/symbols.mjs";
-import { clearTimeout, setTimeout } from "internal:deno_node/polyfills/timers.ts";
+import { charLengthAt, CSI, emitKeys } from "internal:deno_node/internal/readline/utils.mjs";
+import { kSawKeyPress } from "internal:deno_node/internal/readline/symbols.mjs";
+import { clearTimeout, setTimeout } from "internal:deno_node/timers.ts";
 
 const {
   kEscape,
 } = CSI;
 
-import { StringDecoder } from "internal:deno_node/polyfills/string_decoder.ts";
+import { StringDecoder } from "internal:deno_node/string_decoder.ts";
 
 const KEYPRESS_DECODER = Symbol("keypress-decoder");
 const ESCAPE_DECODER = Symbol("escape-decoder");
diff --git a/ext/node/polyfills/internal/readline/interface.mjs b/ext/node/polyfills/internal/readline/interface.mjs
index 41d05fbf2..d8191557f 100644
--- a/ext/node/polyfills/internal/readline/interface.mjs
+++ b/ext/node/polyfills/internal/readline/interface.mjs
@@ -22,30 +22,30 @@
 
 // deno-lint-ignore-file camelcase no-inner-declarations no-this-alias
 
-import { ERR_INVALID_ARG_VALUE, ERR_USE_AFTER_CLOSE } from "internal:deno_node/polyfills/internal/errors.ts";
+import { ERR_INVALID_ARG_VALUE, ERR_USE_AFTER_CLOSE } from "internal:deno_node/internal/errors.ts";
 import {
   validateAbortSignal,
   validateArray,
   validateString,
   validateUint32,
-} from "internal:deno_node/polyfills/internal/validators.mjs";
+} from "internal:deno_node/internal/validators.mjs";
 import {
   //   inspect,
   getStringWidth,
   stripVTControlCharacters,
-} from "internal:deno_node/polyfills/internal/util/inspect.mjs";
-import EventEmitter from "internal:deno_node/polyfills/events.ts";
-import { emitKeypressEvents } from "internal:deno_node/polyfills/internal/readline/emitKeypressEvents.mjs";
+} from "internal:deno_node/internal/util/inspect.mjs";
+import EventEmitter from "internal:deno_node/events.ts";
+import { emitKeypressEvents } from "internal:deno_node/internal/readline/emitKeypressEvents.mjs";
 import {
   charLengthAt,
   charLengthLeft,
   commonPrefix,
   kSubstringSearch,
-} from "internal:deno_node/polyfills/internal/readline/utils.mjs";
-import { clearScreenDown, cursorTo, moveCursor } from "internal:deno_node/polyfills/internal/readline/callbacks.mjs";
-import { Readable } from "internal:deno_node/polyfills/_stream.mjs";
+} from "internal:deno_node/internal/readline/utils.mjs";
+import { clearScreenDown, cursorTo, moveCursor } from "internal:deno_node/internal/readline/callbacks.mjs";
+import { Readable } from "internal:deno_node/_stream.mjs";
 
-import { StringDecoder } from "internal:deno_node/polyfills/string_decoder.ts";
+import { StringDecoder } from "internal:deno_node/string_decoder.ts";
 import {
   kAddHistory,
   kDecoder,
@@ -78,7 +78,7 @@ import {
   kWordLeft,
   kWordRight,
   kWriteToOutput,
-} from "internal:deno_node/polyfills/internal/readline/symbols.mjs";
+} from "internal:deno_node/internal/readline/symbols.mjs";
 
 const kHistorySize = 30;
 const kMincrlfDelay = 100;
diff --git a/ext/node/polyfills/internal/readline/promises.mjs b/ext/node/polyfills/internal/readline/promises.mjs
index 36aa3de12..81677172a 100644
--- a/ext/node/polyfills/internal/readline/promises.mjs
+++ b/ext/node/polyfills/internal/readline/promises.mjs
@@ -1,12 +1,12 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 // Copyright Joyent, Inc. and other Node contributors.
 
-import { ArrayPrototypeJoin, ArrayPrototypePush } from "internal:deno_node/polyfills/internal/primordials.mjs";
+import { ArrayPrototypeJoin, ArrayPrototypePush } from "internal:deno_node/internal/primordials.mjs";
 
-import { CSI } from "internal:deno_node/polyfills/internal/readline/utils.mjs";
-import { validateBoolean, validateInteger } from "internal:deno_node/polyfills/internal/validators.mjs";
-import { isWritable } from "internal:deno_node/polyfills/internal/streams/utils.mjs";
-import { ERR_INVALID_ARG_TYPE } from "internal:deno_node/polyfills/internal/errors.ts";
+import { CSI } from "internal:deno_node/internal/readline/utils.mjs";
+import { validateBoolean, validateInteger } from "internal:deno_node/internal/validators.mjs";
+import { isWritable } from "internal:deno_node/internal/streams/utils.mjs";
+import { ERR_INVALID_ARG_TYPE } from "internal:deno_node/internal/errors.ts";
 
 const {
   kClearToLineBeginning,