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

third_party/icu/source/test/intltest/nmfmtrt.cpp

Index: third_party/icu/source/test/intltest/nmfmtrt.cpp
===================================================================
--- third_party/icu/source/test/intltest/nmfmtrt.cpp	(revision 74230)
+++ third_party/icu/source/test/intltest/nmfmtrt.cpp	(working copy)
@@ -182,7 +182,7 @@
         // I'll get around this by dividing by the multiplier to make sure
         // the double will stay in range.
         //if(fmt->getMultipler() == 1)
-        DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
+        DecimalFormat *df = CR_DYNAMIC_CAST<DecimalFormat *>(fmt);
         if(df != NULL)
         {
 #if !defined(OS390) && !defined(OS400)
@@ -230,7 +230,7 @@
 NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
 {
     fmt->setMaximumFractionDigits(999);
-    DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
+    DecimalFormat *df = CR_DYNAMIC_CAST<DecimalFormat *>(fmt);
     if(df != NULL) {
         df->setRoundingIncrement(0.0);
     }