Fix variable access within macros that are actually methods / have si…

…de effects

src/ameba/rule/lint/unused_instance_variable_access.cr

@@ -52,7 +52,7 @@ module Ameba::Rule::Lint
     end
 
     def test(source, node : Crystal::InstanceVar, node_is_used : Bool, in_macro : Bool)
-      return if node_is_used
+      return if node_is_used || (in_macro && node.name.in?("type"))
 
       issue_for node, MSG
     end

src/ameba/rule/lint/unused_local_variable_access.cr

@@ -70,7 +70,7 @@ module Ameba::Rule::Lint
     end
 
     def test(source, node : Crystal::Var, node_is_used : Bool, in_macro : Bool)
-      return if node_is_used || node.name.in?("self")
+      return if node_is_used || node.name.in?("self") || (in_macro && node.name.in?("skip_file", "debug"))
 
       issue_for node, MSG
     end