keep consistence of name style

src/main/resources/org/yinwang/rubysonar/ruby/dump_ruby.rb

@@ -882,11 +882,11 @@ def negate(exp)
 
 end
 
-def hash_nest_max hash
+def hash_max_nest(hash)
   if hash.is_a?(Array)
-    hash.map{ |e| (hash_nest_max e).to_i }.max.to_i + 1
+    hash.map{ |e| hash_max_nest(e).to_i }.max.to_i + 1
   elsif hash.is_a?(Hash)
-    hash.values.map{ |s| (hash_nest_max s).to_i }.max.to_i + 1
+    hash.values.map{ |s| hash_max_nest(s).to_i }.max.to_i + 1
   else
     0
   end
@@ -896,7 +896,7 @@ def parse_dump(input, output, endmark)
   begin
     simplifier = AstSimplifier.new(input)
     hash = simplifier.simplify
-    json_string = JSON.pretty_generate(hash, max_nesting: (hash_nest_max hash))
+    json_string = JSON.pretty_generate(hash, max_nesting: hash_max_nest(hash))
     out = File.open(output, 'wb')
     out.write(json_string)
     out.close