more tests for `return undefined` optimization

diff --git a/test/compress/return_undefined.js b/test/compress/return_undefined.js
index be79d89..b1195a7 100644 (file)
--- a/test/compress/return_undefined.js
+++ b/test/compress/return_undefined.js
@@ -69,6 +69,15 @@ return_void_0_true: {
             bar(b);
             return undefined;
         }
+        function f10() {
+            return false;
+        }
+        function f11() {
+            return null;
+        }
+        function f12() {
+            return 0;
+        }
     }
     expect: {
         function f0() {}
@@ -103,6 +112,15 @@ return_void_0_true: {
             foo(a);
             bar(b);
         }
+        function f10() {
+            return !1;
+        }
+        function f11() {
+            return null;
+        }
+        function f12() {
+            return 0;
+        }
     }
 }
 
@@ -177,6 +195,15 @@ return_void_0_false: {
             bar(b);
             return undefined;
         }
+        function f10() {
+            return false;
+        }
+        function f11() {
+            return null;
+        }
+        function f12() {
+            return 0;
+        }
     }
     expect: {
         function f0() {
@@ -224,6 +251,15 @@ return_void_0_false: {
             bar(b);
             return void 0;
         }
+        function f10() {
+            return !1;
+        }
+        function f11() {
+            return null;
+        }
+        function f12() {
+            return 0;
+        }
     }
 }