nitc/toolcontext: make error_count writable

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/toolcontext.nit b/src/toolcontext.nit
index 4fd3fa6..0797723 100644 (file)
--- a/src/toolcontext.nit
+++ b/src/toolcontext.nit
@@ -143,7 +143,7 @@ end
 # Global context for tools
 class ToolContext
        # Number of errors
-       var error_count: Int = 0
+       var error_count: Int = 0 is writable
 
        # Number of warnings
        var warning_count: Int = 0