Rename leafrefBase to leafrefBaseType

leafrefBase could also mean the path of leafref and that's kind of
misleading.

Change-Id: I56e0b0edd0f21d5ca289ad9cfc4e056d79f6bed0
diff --git a/src/static_schema.cpp b/src/static_schema.cpp
index 43a8cdc..afbb018 100644
--- a/src/static_schema.cpp
+++ b/src/static_schema.cpp
@@ -189,7 +189,7 @@
     return res;
 }
 
-yang::LeafDataTypes StaticSchema::leafrefBase(const schemaPath_& location, const ModuleNodePair& node) const
+yang::LeafDataTypes StaticSchema::leafrefBaseType(const schemaPath_& location, const ModuleNodePair& node) const
 {
     std::string locationString = pathToSchemaString(location, Prefixes::Always);
     auto leaf{boost::get<yang::leaf>(children(locationString).at(fullNodeName(location, node)))};