Get ICU 4.6 to be compiled without RTTI....

third_party/icu/source/common/schriter.cpp

Index: third_party/icu/source/common/schriter.cpp
===================================================================
--- third_party/icu/source/common/schriter.cpp	(revision 74230)
+++ third_party/icu/source/common/schriter.cpp	(working copy)
@@ -13,7 +13,6 @@
 ******************************************************************************
 */
 
-#include <typeinfo>  // for 'typeid' to work
 
 #include "unicode/chariter.h"
 #include "unicode/schriter.h"
@@ -87,7 +86,7 @@
     // because that checks for array pointer equality
     // while we compare UnicodeString objects
 
-    if (typeid(*this) != typeid(that)) {
+    if (CR_TYPEID(*this) != CR_TYPEID(that)) {
         return FALSE;
     }