Speed up some mjsunit test cases and clean up test expectations for arm and mips.

test/mjsunit/compiler/alloc-number-debug.js

Index: test/mjsunit/compiler/alloc-number-debug.js
diff --git a/test/mjsunit/compiler/alloc-number.js b/test/mjsunit/compiler/alloc-number-debug.js
similarity index 87%
copy from test/mjsunit/compiler/alloc-number.js
copy to test/mjsunit/compiler/alloc-number-debug.js
index 85c39de431fd7ec7264e277f7ce727ad5f7f1a63..ccfcc0c185a6d29c0acfc3c217276434b71f130a 100644
--- a/test/mjsunit/compiler/alloc-number.js
+++ b/test/mjsunit/compiler/alloc-number-debug.js
@@ -1,4 +1,4 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Copyright 2014 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:
@@ -25,15 +25,20 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// Flags: --allow-natives-syntax
 
 // Try to get a GC because of a heap number allocation while we
 // have live values (o) in a register.
 function f(o) {
   var x = 1.5;
   var y = 2.5;
-  for (var i = 1; i < 100000; i+=2) o.val = x + y + i;
+  for (var i = 1; i < 3; i += 1) {
+    %SetAllocationTimeout(1, 0, false);
+    o.val = x + y + i;
+    %SetAllocationTimeout(-1, -1, true);
+  }
   return o;
 }
 
 var o = { val: 0 };
-for (var i = 0; i < 100; i++) f(o);
+f(o);