[strong] Check super constructor calls

test/mjsunit/strong/classes.js

Index: test/mjsunit/strong/classes.js
diff --git a/test/mjsunit/strong/classes.js b/test/mjsunit/strong/classes.js
index 3c7caf5f84e4a5d31ac3519d975816a4be05ae8b..d5c4560844e688b2fa335f3b63b62ab9b4dbd9ca 100644
--- a/test/mjsunit/strong/classes.js
+++ b/test/mjsunit/strong/classes.js
@@ -3,15 +3,44 @@
 // found in the LICENSE file.
 
 // Flags: --strong-mode
+// Flags: --harmony-classes --harmony-arrow-functions
 
 'use strong';
 
 class C {}
 
+function assertTypeError(script) { assertThrows(script, TypeError) }
+function assertSyntaxError(script) { assertThrows(script, SyntaxError) }
+function assertReferenceError(script) { assertThrows(script, ReferenceError) }
+
 (function ImmutableClassBindings() {
   class D {}
-  assertThrows(function(){ eval("C = 0") }, TypeError);
-  assertThrows(function(){ eval("D = 0") }, TypeError);
+  assertTypeError(function(){ eval("C = 0") });
+  assertTypeError(function(){ eval("D = 0") });
   assertEquals('function', typeof C);
   assertEquals('function', typeof D);
 })();
+
+function constructor(body) {
+  return "'use strong'; " +
+      "(class extends Object { constructor() { " + body + " } })";
+}
+
+(function NoMissingSuper() {
+  assertReferenceError(constructor(""));
+  assertReferenceError(constructor("1"));
+})();
+
+(function NoNestedSuper() {
+  assertSyntaxError(constructor("(super())"));
+  assertSyntaxError(constructor("(() => super())(); } })"));
+  assertSyntaxError(constructor("{ super();"));
+  assertSyntaxError(constructor("if (1) super();"));
+})();
+
+(function NoDuplicateSuper() {
+  assertSyntaxError(constructor("super(), super();"));
+  assertSyntaxError(constructor("super(); super();"));
+  assertSyntaxError(constructor("super(); (super());"));
+  assertSyntaxError(constructor("super(); { super() }"));
+})();