Per off-list feedback, this API returns the *first* value with a given name, not the *only* one. Rename it to reflect that

llvm-svn: 222582
diff --git a/lldb/scripts/Python/interface/SBValueList.i b/lldb/scripts/Python/interface/SBValueList.i
index 12aed86..0ba9b79 100644
--- a/lldb/scripts/Python/interface/SBValueList.i
+++ b/lldb/scripts/Python/interface/SBValueList.i
@@ -98,7 +98,7 @@
     FindValueObjectByUID (lldb::user_id_t uid);
     
     lldb::SBValue
-    GetValueByName (const char* name) const;
+    GetFirstValueByName (const char* name) const;
     
     %pythoncode %{
         def __len__(self):