ion out last changes from grammar update

surprisingly painless, considering it was more or less a rewrite

lib/interpreter/interpreter.rb

@@ -183,8 +183,8 @@ module Interpreter
       left = get_register(@instruction.left)
       rr = @instruction.right
       right = get_register(rr)
-      case @instruction.operator
-      when :add
+      case @instruction.operator.to_s
+      when "add"
         result = left + right
       when "/"
         result = left / right
@@ -195,7 +195,7 @@ module Interpreter
       when "=="
         result = left == right
       else
-        raise "unimplemented  #{@instruction.operator} #{@instruction}"
+        raise "unimplemented  '#{@instruction.operator}' #{@instruction}"
       end
       puts "#{@instruction} == #{result}"
       right = set_register(rr , result)

lib/phisol/compiler/if_statement.rb

@@ -2,7 +2,7 @@ module Phisol
   Compiler.class_eval do
 #    if - attr_reader  :cond, :if_true, :if_false
 
-    def on_if statement
+    def on_if_statement statement
       condition , if_true , if_false = *statement
       condition = condition.first
       # to execute the logic as the if states it, the blocks are the other way around

lib/phisol/compiler/operator_value.rb

@@ -1,7 +1,7 @@
 module Phisol
   Compiler.class_eval do
 
-    def on_operator statement
+    def on_operator_value statement
       puts "operator #{statement.inspect}"
       operator , left_e , right_e = *statement
       left_slot = process(left_e)
@@ -22,7 +22,7 @@ module Phisol
       Virtual::Return.new(:int )
     end
 
-    def on_assign statement
+    def on_assignment statement
       puts statement.inspect
       name , value = *statement
       name = name.to_a.first

lib/phisol/compiler/while_statement.rb

@@ -1,7 +1,7 @@
 module Phisol
   Compiler.class_eval do
 
-    def on_while statement
+    def on_while_statement statement
       #puts statement.inspect
       condition , statements = *statement
       condition = condition.first