Showing the first func def in the preview window

cpp/ycm/ClangUtils.cpp

@@ -108,19 +108,14 @@ std::vector< CompletionData > ToCompletionDataVector(
 
     else
     {
-      std::string possible_newline =
-        completions[ index ].detailed_info_.empty() ?
-        "" :
-        "\n";
-
       // If we have already seen this completion, then this is an overload of a
       // function we have seen. We add the signature of the overload to the
       // detailed information.
       completions[ index ].detailed_info_
-        .append( possible_newline )
         .append( data.return_type_ )
         .append( " " )
-        .append( data.everything_except_return_type_ );
+        .append( data.everything_except_return_type_ )
+        .append( "\n" );
     }
   }
 

cpp/ycm/CompletionData.cpp

@@ -200,6 +200,11 @@ CompletionData::CompletionData( const CXCompletionResult &completion_result )
   }
 
   kind_ = CursorKindToVimKind( completion_result.CursorKind );
+
+  detailed_info_.append( return_type_ )
+                .append( " " )
+                .append( everything_except_return_type_ )
+                .append( "\n" );
 }
 
 } // namespace YouCompleteMe