Fix invalid tests

test/built-ins/Function/15.3.2.1-10-6gs.js

@@ -10,10 +10,9 @@ description: >
     Strict Mode - SyntaxError is thrown if a function using the
     Function constructor has two identical parameters in (local)
     strict mode
-negative: Test262Error
 flags: [onlyStrict]
-includes: [Test262Error.js]
 ---*/
 
-throw new Test262Error();
-var _15_3_2_1_10_6_fun = new Function('param_1', 'param_2', 'param_1', '"use strict";return 0;');
+assert.throws(SyntaxError, function() {
+  new Function('param_1', 'param_2', 'param_1', '"use strict";return 0;');
+});

test/built-ins/Function/15.3.5-1gs.js

@@ -9,12 +9,11 @@ es5id: 15.3.5-1gs
 description: >
     StrictMode - error is thrown when reading the 'caller' property of
     a function object
-negative: Test262Error
 flags: [onlyStrict]
-includes: [Test262Error.js]
 ---*/
 
-"use strict";
 function _15_3_5_1_gs() {}
-throw new Test262Error();
-_15_3_5_1_gs.caller;
+
+assert.throws(TypeError, function() {
+  _15_3_5_1_gs.caller;
+});

test/language/eval-code/10.4.2-2-s.js

@@ -15,7 +15,7 @@ includes: [runTestCase.js]
 
 function testcase() {
         "use strict";
-        eval("(function fun(x){ return x })(10)");
+        eval("function fun(x){ return x }");
         return typeof (fun) === "undefined";
     }
 runTestCase(testcase);