fix corner case in `inline` (#3853)

fixes #3852

3 files changed, 23 insertions, 2 deletions

diff --git a/test/compress/drop-unused.js b/test/compress/drop-unused.js
index d7d92bb2..ff230ae2 100644
--- a/test/compress/drop-unused.js
+++ b/test/compress/drop-unused.js
@@ -2366,7 +2366,7 @@ function_parameter_ie8: {
     }
     expect: {
         (function() {
-            (function f() {
+            (function() {
                 console.log("PASS");
             })();
         })();
diff --git a/test/compress/functions.js b/test/compress/functions.js
index 439c073a..ae113c84 100644
--- a/test/compress/functions.js
+++ b/test/compress/functions.js
@@ -4660,3 +4660,24 @@ issue_3836: {
     }
     expect_stdout: "PASS"
 }
+
+issue_3852: {
+    options = {
+        collapse_vars: true,
+        inline: true,
+        unused: true,
+    }
+    input: {
+        console.log(function(a) {
+            return function(b) {
+                return b && (b[0] = 0), "PASS";
+            }(a);
+        }(42));
+    }
+    expect: {
+        console.log(function(a) {
+            return a && (a[0] = 0), "PASS";
+        }(42));
+    }
+    expect_stdout: "PASS"
+}
diff --git a/test/compress/ie8.js b/test/compress/ie8.js
index 0c79ece0..53f78f1b 100644
--- a/test/compress/ie8.js
+++ b/test/compress/ie8.js
@@ -2389,7 +2389,7 @@ issue_3703: {
         var a = "PASS";
         (function() {
             var b;
-            var c = function g() {
+            var c = function() {
                 a = "FAIL";
             };
             a ? b |= c : b.p;