2 files changed, 99 insertions, 14 deletions

diff --git a/test/compress/issue-782.js b/test/compress/issue-782.js
index 2f72d1ab..6e1c92f5 100644
--- a/test/compress/issue-782.js
+++ b/test/compress/issue-782.js
@@ -1,11 +1,31 @@
+remove_sequence: {
+    options = {
+        side_effects: true,
+    }
+    input: {
+        (0, 1, eval)();
+        (0, 1, logThis)();
+        (0, 1, _decorators.logThis)();
+    }
+    expect: {
+        eval();
+        logThis();
+        (0, _decorators.logThis)();
+    }
+}
+
 remove_redundant_sequence_items: {
-    options = { side_effects: true };
+    options = {
+        side_effects: true,
+    }
     input: {
+        "use strict";
         (0, 1, eval)();
         (0, 1, logThis)();
         (0, 1, _decorators.logThis)();
     }
     expect: {
+        "use strict";
         (0, eval)();
         logThis();
         (0, _decorators.logThis)();
@@ -13,13 +33,17 @@ remove_redundant_sequence_items: {
 }
 
 dont_remove_this_binding_sequence: {
-    options = { side_effects: true };
+    options = {
+        side_effects: true,
+    }
     input: {
+        "use strict";
         (0, eval)();
         (0, logThis)();
         (0, _decorators.logThis)();
     }
     expect: {
+        "use strict";
         (0, eval)();
         logThis();
         (0, _decorators.logThis)();
diff --git a/test/compress/issue-973.js b/test/compress/issue-973.js
index a9fcd84f..3eb25fac 100644
--- a/test/compress/issue-973.js
+++ b/test/compress/issue-973.js
@@ -3,8 +3,9 @@ this_binding_conditionals: {
         conditionals: true,
         evaluate: true,
         side_effects: true,
-    };
+    }
     input: {
+        "use strict";
         (1 && a)();
         (0 || a)();
         (0 || 1 && a)();
@@ -26,6 +27,7 @@ this_binding_conditionals: {
         (1 ? eval : 0)();
     }
     expect: {
+        "use strict";
         a();
         a();
         a();
@@ -53,13 +55,15 @@ this_binding_collapse_vars: {
         collapse_vars: true,
         toplevel: true,
         unused: true,
-    };
+    }
     input: {
+        "use strict";
         var c = a; c();
         var d = a.b; d();
         var e = eval; e();
     }
     expect: {
+        "use strict";
         a();
         (0, a.b)();
         (0, eval)();
@@ -69,31 +73,88 @@ this_binding_collapse_vars: {
 this_binding_side_effects: {
     options = {
         side_effects : true
-    };
+    }
     input: {
-        (function (foo) {
+        (function(foo) {
+            (0, foo)();
+            (0, foo.bar)();
+            (0, eval)("console.log(foo);");
+        }());
+        (function(foo) {
+            "use strict";
             (0, foo)();
             (0, foo.bar)();
-            (0, eval)('console.log(foo);');
+            (0, eval)("console.log(foo);");
         }());
-        (function (foo) {
+        (function(foo) {
             var eval = console;
             (0, foo)();
             (0, foo.bar)();
-            (0, eval)('console.log(foo);');
+            (0, eval)("console.log(foo);");
         }());
     }
     expect: {
-        (function (foo) {
+        (function(foo) {
             foo();
             (0, foo.bar)();
-            (0, eval)('console.log(foo);');
+            eval("console.log(foo);");
         }());
-        (function (foo) {
+        (function(foo) {
+            "use strict";
+            foo();
+            (0, foo.bar)();
+            (0, eval)("console.log(foo);");
+        }());
+        (function(foo) {
             var eval = console;
             foo();
             (0, foo.bar)();
-            (0, eval)('console.log(foo);');
+            eval("console.log(foo);");
+        }());
+    }
+}
+
+this_binding_sequences: {
+    options = {
+        sequences: true,
+        side_effects: true,
+    }
+    input: {
+        console.log(typeof function() {
+            return eval("this");
+        }());
+        console.log(typeof function() {
+            "use strict";
+            return eval("this");
+        }());
+        console.log(typeof function() {
+            return (0, eval)("this");
+        }());
+        console.log(typeof function() {
+            "use strict";
+            return (0, eval)("this");
+        }());
+    }
+    expect: {
+        console.log(typeof function() {
+            return eval("this");
+        }()),
+        console.log(typeof function() {
+            "use strict";
+            return eval("this");
+        }()),
+        console.log(typeof function() {
+            return eval("this");
+        }()),
+        console.log(typeof function() {
+            "use strict";
+            return (0, eval)("this");
         }());
     }
-}
\ No newline at end of file
+    expect_stdout: [
+        "object",
+        "undefined",
+        "object",
+        "object",
+    ]
+}