Diagnosing MSVC parameterised macro iteration issues

Author: Cormac Cannon

fakegen.rb

@@ -630,7 +630,7 @@ def counting_macro_instance(type, has_calling_conventions, vararg = :non_vararg,
 
 def output_macro_counting_shortcuts(has_calling_conventions)
 
-  ppiter = PPIterators.new()
+  ppiter = PPIterators.new(recursive: false)
   putd <<-MACRO_COUNTING
 
 #{ppiter.embed_macros}