Ignore PHP namespace statements

Author: tillkruss

lib/cc/engine/analyzers/php/main.rb

@@ -13,6 +13,7 @@ class Main < CC::Engine::Analyzers::Base
           ].freeze
           DEFAULT_MASS_THRESHOLD = 75
           DEFAULT_FILTERS = [
+            "(Stmt_Namespace ___)",
             "(Stmt_Use ___)",
             "(comments ___)",
           ].freeze