remove method_compiler init method

as init is really just adding a label it is done in the method
 (thus mixing the levels, “polluting” parfait with risc, but there must
be change coming that way anyway)

lib/risc/method_compiler.rb

@@ -16,7 +16,7 @@ module Risc
         @method = method
         @type = method.for_type
       end
-      @current = @method.instructions
+      @current = @method.risc_instructions
     end
     attr_reader :type , :method
 
@@ -41,17 +41,6 @@ module Risc
       self.new(method)
     end
 
-    # add method entry and exit code. Mainly save_return for the enter and
-    # message shuffle and FunctionReturn for the return
-    # return self for chaining
-    def init_method
-      source = "_init_method"
-      name = "#{method.for_type.name}.#{method.name}"
-      @current = @method.set_instructions( Risc.label(source, name))
-      @current << Risc.label( source, "unreachable")
-      self
-    end
-
     def add_known(name)
       case name
       when :receiver