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

third_party/icu/source/i18n/tmutfmt.cpp

Index: third_party/icu/source/i18n/tmutfmt.cpp
===================================================================
--- third_party/icu/source/i18n/tmutfmt.cpp	(revision 74230)
+++ third_party/icu/source/i18n/tmutfmt.cpp	(working copy)
@@ -5,7 +5,6 @@
  *******************************************************************************
  */
 
-#include <typeinfo>  // for 'typeid' to work
 
 #include "unicode/tmutfmt.h"
 
@@ -173,7 +172,7 @@
 
 UBool 
 TimeUnitFormat::operator==(const Format& other) const {
-    if (typeid(*this) == typeid(other)) {
+    if (CR_TYPEID(*this) == CR_TYPEID(other)) {
         TimeUnitFormat* fmt = (TimeUnitFormat*)&other;
         UBool ret =  ( ((fNumberFormat && fmt->fNumberFormat && *fNumberFormat == *fmt->fNumberFormat)
                             || fNumberFormat == fmt->fNumberFormat ) 
@@ -202,7 +201,7 @@
     }
     if (obj.getType() == Formattable::kObject) {
         const UObject* formatObj = obj.getObject();
-        const TimeUnitAmount* amount = dynamic_cast<const TimeUnitAmount*>(formatObj);
+        const TimeUnitAmount* amount = CR_DYNAMIC_CAST<const TimeUnitAmount*>(formatObj);
         if (amount != NULL){
             Hashtable* countToPattern = fTimeUnitToCountToPatterns[amount->getTimeUnitField()];
             double number;