rename ClassCompiler to MomComplier

ended up not even using the class, it just came from there
It actually compiles methods, and it turns out is the point where builtin comes into the picture as it's boot process also returns method compilers

test/mom/test_method_compiler.rb

@@ -1,7 +1,7 @@
 require_relative "helper"
 
 module Mom
-  class TestClassCompiler < MiniTest::Test
+  class TestMomCompiler < MiniTest::Test
     include MomCompile
 
     def setup
@@ -10,7 +10,7 @@ module Mom
     end
 
     def test_class
-      assert_equal ClassCompiler , @comp.class
+      assert_equal MomCompiler , @comp.class
     end
     def test_compilers
       assert_equal 1 , @comp.method_compilers.length
@@ -19,7 +19,7 @@ module Mom
       assert @comp.translate(:interpreter)
     end
   end
-  class TestClassCompilerTranslate < MiniTest::Test
+  class TestMomCompilerTranslate < MiniTest::Test
     include MomCompile
 
     def setup