Rename LookupSymbol calls to use Utf8 or OneByte in names.

test/cctest/test-random.cc

Index: test/cctest/test-random.cc
diff --git a/test/cctest/test-random.cc b/test/cctest/test-random.cc
index 86d6d8c144914ddc9d48ecd505b8c24188a0cb9f..55879bf519e5962fa10f7ecec01e6bcfff65b515 100644
--- a/test/cctest/test-random.cc
+++ b/test/cctest/test-random.cc
@@ -83,7 +83,8 @@ TEST(CrankshaftRandom) {
 
   CompileRun("function f() { return Math.random(); }");
 
-  Object* symbol = FACTORY->LookupAsciiSymbol("f")->ToObjectChecked();
+  Object* symbol = FACTORY->LookupOneByteSymbol(STATIC_ASCII_VECTOR("f"))->
+      ToObjectChecked();
   MaybeObject* fun_object =
       context->global_object()->GetProperty(String::cast(symbol));
   Handle<JSFunction> fun(JSFunction::cast(fun_object->ToObjectChecked()));