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

test/mjsunit/regress/regress-634-debug.js

Index: test/mjsunit/regress/regress-634-debug.js
diff --git a/test/mjsunit/regress/regress-334708.js b/test/mjsunit/regress/regress-634-debug.js
similarity index 88%
copy from test/mjsunit/regress/regress-334708.js
copy to test/mjsunit/regress/regress-634-debug.js
index f0291bbdab61128baad9df89457d045b66644f1b..17ca828c68cd4de35f6bf0608a980fe1adebb355 100644
--- a/test/mjsunit/regress/regress-334708.js
+++ b/test/mjsunit/regress/regress-634-debug.js
@@ -27,16 +27,15 @@
 
 // Flags: --allow-natives-syntax
 
-function foo(x, y) {
-  return Math.floor(x / y);
+function f() {
+  %SetAllocationTimeout(1, 0, false);
+  a = new Array(0);
+  assertEquals(0, a.length);
+  assertEquals(0, a.length);
+  %SetAllocationTimeout(-1, -1, true);
 }
 
-function bar(x, y) {
-  return foo(x + 1, y + 1);
-}
-
-foo(16, "4");
-
-bar(64, 2);
-%OptimizeFunctionOnNextCall(bar);
-bar(64, 2);
+f();
+f();
+%OptimizeFunctionOnNextCall(f);
+f();