fix: ts import type and func with duplicate name (#15284)

fix

packages/babel-plugin-transform-typescript/test/fixtures/imports/import-type-func-with-duplicate-name/input.ts

@@ -0,0 +1,4 @@
+import type {Foo} from 'foo';
+import {type Foo2} from 'foo';
+function Foo(){}
+function Foo2(){}

packages/babel-plugin-transform-typescript/test/fixtures/imports/import-type-func-with-duplicate-name/output.mjs

@@ -0,0 +1,3 @@
+function Foo() {}
+function Foo2() {}
+export {};

packages/babel-traverse/src/scope/index.ts

@@ -733,9 +733,17 @@ export default class Scope {
       if (path.node.declare) return;
       this.registerBinding("let", path);
     } else if (path.isImportDeclaration()) {
+      const isTypeDeclaration =
+        path.node.importKind === "type" || path.node.importKind === "typeof";
       const specifiers = path.get("specifiers");
       for (const specifier of specifiers) {
-        this.registerBinding("module", specifier);
+        const isTypeSpecifier =
+          isTypeDeclaration ||
+          (specifier.isImportSpecifier() &&
+            (specifier.node.importKind === "type" ||
+              specifier.node.importKind === "typeof"));
+
+        this.registerBinding(isTypeSpecifier ? "unknown" : "module", specifier);
       }
     } else if (path.isExportDeclaration()) {
       // todo: improve babel-types

packages/babel-traverse/test/scope.js

@@ -386,6 +386,23 @@ describe("scope", () => {
       ).toBe("ImportSpecifier");
     });
 
+    it("import type and func with duplicate name", function () {
+      expect(() => {
+        getPath(
+          `
+            import type {Foo} from 'foo';
+            import {type Foo2} from 'foo';
+            function Foo(){}
+            function Foo2(){}
+          `,
+          {
+            plugins: ["typescript"],
+            sourceType: "module",
+          },
+        );
+      }).not.toThrow();
+    });
+
     it("variable constantness", function () {
       expect(getPath("var a = 1;").scope.getBinding("a").constant).toBe(true);
       expect(getPath("var a = 1; a = 2;").scope.getBinding("a").constant).toBe(