fix: support "..." for resolve importsFields

lib/config/defaults.js

@@ -1516,6 +1516,7 @@ const getResolveDefaults = ({
 		exportsFields: ["exports"],
 		roots: [context],
 		mainFields: ["main"],
+		importsFields: ["imports"],
 		byDependency: {
 			wasm: esmDeps(),
 			esm: esmDeps(),

test/Defaults.unittest.js

@@ -594,6 +594,9 @@ describe("snapshots", () => {
 		      "exports",
 		    ],
 		    "extensions": Array [],
+		    "importsFields": Array [
+		      "imports",
+		    ],
 		    "mainFields": Array [
 		      "main",
 		    ],

test/configCases/resolve-merging/imports-fields/index.js

@@ -0,0 +1,8 @@
+import d1 from "./pkg.mjs";
+import d2 from "#internal";
+import { d3, d4 } from "lib";
+
+it("imports field to resolve to the same", () => {
+	expect(d2).toBe(d1);
+	expect(d4).toBe(d3);
+});

test/configCases/resolve-merging/imports-fields/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "pkg",
+  "imports": {
+    "#internal": "./pkg.mjs"
+  }
+}

test/configCases/resolve-merging/imports-fields/pkg.mjs

@@ -0,0 +1 @@
+export default 'pkg';

test/configCases/resolve-merging/imports-fields/webpack.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+	entry: "./index.js",
+	resolve: {
+		importsFields: ["hash-start", "..."]
+	}
+};