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, 7 insertions, 7 deletions

diff --git a/ext/node/polyfills/internal/dns/promises.ts b/ext/node/polyfills/internal/dns/promises.ts
index 40f57fd2c..9eb7cd03b 100644
--- a/ext/node/polyfills/internal/dns/promises.ts
+++ b/ext/node/polyfills/internal/dns/promises.ts
@@ -25,8 +25,8 @@ import {
   validateNumber,
   validateOneOf,
   validateString,
-} from "internal:deno_node/polyfills/internal/validators.mjs";
-import { isIP } from "internal:deno_node/polyfills/internal/net.ts";
+} from "internal:deno_node/internal/validators.mjs";
+import { isIP } from "internal:deno_node/internal/net.ts";
 import {
   emitInvalidHostnameWarning,
   getDefaultResolver,
@@ -35,7 +35,7 @@ import {
   isLookupOptions,
   Resolver as CallbackResolver,
   validateHints,
-} from "internal:deno_node/polyfills/internal/dns/utils.ts";
+} from "internal:deno_node/internal/dns/utils.ts";
 import type {
   LookupAddress,
   LookupAllOptions,
@@ -44,19 +44,19 @@ import type {
   Records,
   ResolveOptions,
   ResolveWithTtlOptions,
-} from "internal:deno_node/polyfills/internal/dns/utils.ts";
+} from "internal:deno_node/internal/dns/utils.ts";
 import {
   dnsException,
   ERR_INVALID_ARG_TYPE,
   ERR_INVALID_ARG_VALUE,
-} from "internal:deno_node/polyfills/internal/errors.ts";
+} from "internal:deno_node/internal/errors.ts";
 import {
   ChannelWrapQuery,
   getaddrinfo,
   GetAddrInfoReqWrap,
   QueryReqWrap,
-} from "internal:deno_node/polyfills/internal_binding/cares_wrap.ts";
-import { toASCII } from "internal:deno_node/polyfills/punycode.ts";
+} from "internal:deno_node/internal_binding/cares_wrap.ts";
+import { toASCII } from "internal:deno_node/punycode.ts";
 
 function onlookup(
   this: GetAddrInfoReqWrap,