4 files changed, 55 insertions, 15 deletions
diff --git a/test/compress/collapse_vars.js b/test/compress/collapse_vars.js
index 158d1b4a..f3eb7816 100644
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -1978,10 +1978,10 @@ chained_3: {
     }
     expect: {
         console.log(function(a, b) {
-            var c = a, c = b;
+            var c = 1, c = b;
             b++;
             return c;
-        }(1, 2));
+        }(0, 2));
     }
     expect_stdout: "2"
 }
@@ -2186,3 +2186,34 @@ compound_assignment: {
     }
     expect_stdout: "4"
 }
+
+issue_2187: {
+    options = {
+        collapse_vars: true,
+        unused: true,
+    }
+    input: {
+        var a = 1;
+        !function(foo) {
+            foo();
+            var a = 2;
+            console.log(a);
+        }(function() {
+            console.log(a);
+        });
+    }
+    expect: {
+        var a = 1;
+        !function(foo) {
+            foo();
+            var a = 2;
+            console.log(a);
+        }(function() {
+            console.log(a);
+        });
+    }
+    expect_stdout: [
+        "1",
+        "2",
+    ]
+}
diff --git a/test/compress/drop-unused.js b/test/compress/drop-unused.js
index 08fc7b18..e1acdc10 100644
--- a/test/compress/drop-unused.js
+++ b/test/compress/drop-unused.js
@@ -1113,6 +1113,7 @@ issue_2105: {
     options = {
         collapse_vars: true,
         inline: true,
+        passes: 2,
         reduce_vars: true,
         side_effects: true,
         unused: true,
@@ -1138,7 +1139,7 @@ issue_2105: {
         });
     }
     expect: {
-        !void function() {
+        (function() {
             var quux = function() {
                 console.log("PASS");
             };
@@ -1148,7 +1149,7 @@ issue_2105: {
                     quux();
                 }
             };
-        }().prop();
+        })().prop();
     }
     expect_stdout: "PASS"
 }
diff --git a/test/compress/functions.js b/test/compress/functions.js
index c8efc12c..f411afa2 100644
--- a/test/compress/functions.js
+++ b/test/compress/functions.js
@@ -468,11 +468,9 @@ issue_2114_1: {
     }
     expect: {
         var c = 0;
-        !function() {
-            0;
-        }((c += 1, c = 1 + c, function() {
+        c = 1 + (c += 1), function() {
             var b = void (b && (b.b += (c += 1, 0)));
-        }()));
+        }();
         console.log(c);
     }
     expect_stdout: "2"
diff --git a/test/compress/issue-281.js b/test/compress/issue-281.js
index 9b8c8bfd..65871a84 100644
--- a/test/compress/issue-281.js
+++ b/test/compress/issue-281.js
@@ -419,7 +419,7 @@ wrap_iife_in_return_call: {
     expect_exact: '(void console.log("test"))();'
 }
 
-pure_annotation: {
+pure_annotation_1: {
     options = {
         inline: true,
         side_effects: true,
@@ -432,6 +432,20 @@ pure_annotation: {
     expect_exact: ""
 }
 
+pure_annotation_2: {
+    options = {
+        collapse_vars: true,
+        inline: true,
+        side_effects: true,
+    }
+    input: {
+        /*@__PURE__*/(function(n) {
+            console.log("hello", n);
+        }(42));
+    }
+    expect_exact: ""
+}
+
 drop_fargs: {
     options = {
         cascade: true,
@@ -449,9 +463,7 @@ drop_fargs: {
     }
     expect: {
         var a = 1;
-        !function() {
-            a++;
-        }(++a && a.var);
+        ++a && a.var, a++;
         console.log(a);
     }
     expect_stdout: "3"
@@ -474,9 +486,7 @@ keep_fargs: {
     }
     expect: {
         var a = 1;
-        !function(a_1) {
-            a++;
-        }(++a && a.var);
+        ++a && a.var, a++;
         console.log(a);
     }
     expect_stdout: "3"