Change Math.random() to return 32 bits of random goodness, instead of 30 rand...

test/cctest/test-log-stack-tracer.cc

Index: test/cctest/test-log-stack-tracer.cc
===================================================================
--- test/cctest/test-log-stack-tracer.cc	(revision 4353)
+++ test/cctest/test-log-stack-tracer.cc	(working copy)
@@ -235,11 +235,11 @@
   CodeGeneratorPatcher() {
     CodeGenerator::InlineRuntimeLUT genGetFramePointer =
         {&CodeGenerator::GenerateGetFramePointer, "_GetFramePointer", 0};
-    // _RandomPositiveSmi is not used in our tests. The one we replace need to
-    // have the same number of arguments as the one we put in, which is zero in
-    // this case.
+    // _RandomHeapNumber is just used as a dummy function that has zero
+    // arguments, the same as the _GetFramePointer function we actually patch
+    // in.
     bool result = CodeGenerator::PatchInlineRuntimeEntry(
-        NewString("_RandomPositiveSmi"),
+        NewString("_RandomHeapNumber"),
         genGetFramePointer, &oldInlineEntry);
     CHECK(result);
   }