fix corner cases with `import` (#4709)

fixes #4708

1 files changed, 35 insertions, 0 deletions

diff --git a/test/compress/imports.js b/test/compress/imports.js
index 558dd6a8..50b3fb69 100644
--- a/test/compress/imports.js
+++ b/test/compress/imports.js
@@ -165,3 +165,38 @@ forbid_merge: {
         f();
     }
 }
+
+issue_4708_1: {
+    options = {
+        imports: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        var a;
+        import a from "foo";
+    }
+    expect: {
+        var a;
+        import a from "foo";
+    }
+}
+
+issue_4708_2: {
+    options = {
+        imports: true,
+        reduce_vars: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        var a;
+        console.log(a);
+        import a from "foo";
+    }
+    expect: {
+        var a;
+        console.log(a);
+        import a from "foo";
+    }
+}