THRIFT-877. compiler: smalltalk namespace doesn't work

This patch adds a special case to map 'smalltalk' to 'st' when checking for valid namespace declarations.

Patch: Bruce Lowekamp

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@990866 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/test/ThriftTest.thrift b/test/ThriftTest.thrift
index 919b68f..4ade6aa 100644
--- a/test/ThriftTest.thrift
+++ b/test/ThriftTest.thrift
@@ -27,6 +27,7 @@
 namespace perl ThriftTest
 namespace csharp Thrift.Test
 namespace js ThriftTest
+namespace st ThriftTest
 
 /**
  * Docstring!