Fix a number of tests that incorrectly used assertUnreachable.

test/mjsunit/array-reduce.js

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 393 matching lines @@
 
 testReduce("reduceRight", "ArrayWithNonElementPropertiesReduceRight", 6,
            [[0, 3, 3, arrayPlus, 3],
             [3, 2, 1, arrayPlus, 5],
             [5, 1, 0, arrayPlus, 6],
            ], arrayPlus, sum, 0);
 
 
 // Test error conditions:
 
+var exception = false;
 try {
   [1].reduce("not a function");
-  assertUnreachable("Reduce callback not a function not throwing");
 } catch (e) {
+  exception = true;
   assertTrue(e instanceof TypeError,
              "reduce callback not a function not throwing TypeError");
   assertEquals("called_non_callable", e.type,
                "reduce non function TypeError type");
 }
+assertTrue(exception);
 
+exception = false;
 try {
   [1].reduceRight("not a function");
-  assertUnreachable("ReduceRight callback not a function not throwing");
 } catch (e) {
+  exception = true;
   assertTrue(e instanceof TypeError,
              "reduceRight callback not a function not throwing TypeError");
   assertEquals("called_non_callable", e.type,
                "reduceRight non function TypeError type");
 }
+assertTrue(exception);
 
-
+exception = false;
 try {
   [].reduce(sum);
-  assertUnreachable("Reduce no initial value not throwing");
 } catch (e) {
+  exception = true;
   assertTrue(e instanceof TypeError,
              "reduce no initial value not throwing TypeError");
   assertEquals("reduce_no_initial", e.type,
                "reduce no initial TypeError type");
 }
+assertTrue(exception);
 
+exception = false;
 try {
   [].reduceRight(sum);
-  assertUnreachable("ReduceRight no initial value not throwing");
 } catch (e) {
+  exception = true;
   assertTrue(e instanceof TypeError,
              "reduceRight no initial value not throwing TypeError");
   assertEquals("reduce_no_initial", e.type,
                "reduceRight no initial TypeError type");
 }
+assertTrue(exception);
 
-
+exception = false;
 try {
   [,,,].reduce(sum);
-  assertUnreachable("Reduce sparse no initial value not throwing");
 } catch (e) {
+  exception = true;
   assertTrue(e instanceof TypeError,
              "reduce sparse no initial value not throwing TypeError");
   assertEquals("reduce_no_initial", e.type,
                "reduce no initial TypeError type");
 }
+assertTrue(exception);
 
+exception = false;
 try {
   [,,,].reduceRight(sum);
-  assertUnreachable("ReduceRight sparse no initial value not throwing");
 } catch (e) {
+  exception = true;
   assertTrue(e instanceof TypeError,
              "reduceRight sparse no initial value not throwing TypeError");
   assertEquals("reduce_no_initial", e.type,
                "reduceRight no initial TypeError type");
 }
+assertTrue(exception);
 
 
 // Array changing length
 
 function manipulator(a, b, i, s) {
   if (s.length % 2) {
     s[s.length * 3] = i;
   } else {
     s.length = s.length >> 1;
   }
@@ skipping 19 matching lines @@
   return a + b;
 }
 
 var arr = [1, 2, 3, 4];
 testReduce("reduce", "ArrayManipulationExtender", 10,
            [[0, 1, 0, [1, 2, 3, 4], 1],
             [1, 2, 1, [1, 2, 3, 4, 4], 3],
             [3, 3, 2, [1, 2, 3, 4, 4, 5], 6],
             [6, 4, 3, [1, 2, 3, 4, 4, 5, 6], 10],
            ], arr, extender, 0);
-