make proper use of the term definition IS_REVERSE_PROPERTY_FLAG

Author: danpape

Diff for: jsonld-cpp/Context.cpp

@@ -12,7 +12,7 @@ bool Context::isReverseProperty(const std::string &property) const {
     if (td.is_null()) {
         return false;
     }
-    return td.contains(JsonLdConsts::REVERSE) && td.at(JsonLdConsts::REVERSE);
+    return td.contains(JsonLdConsts::IS_REVERSE_PROPERTY_FLAG) && td.at(JsonLdConsts::IS_REVERSE_PROPERTY_FLAG);
 }
 
 json Context::getTermDefinition(const std::string & key) const {

Diff for: jsonld-cpp/ContextProcessor.cpp

@@ -281,7 +281,7 @@ namespace {
 
             // 13.6)
             // Set the reverse property flag of definition to true.
-            definition[JsonLdConsts::REVERSE] = true;
+            definition[JsonLdConsts::IS_REVERSE_PROPERTY_FLAG] = true;
 
             // 13.7)
             // Set the term definition of term in active context to definition and the value