adding types to layout

so we can test assignment

lib/soml/compiler/class_field.rb

@@ -10,7 +10,7 @@ module Soml
       index = for_class.object_layout.variable_index(name)
       #raise "class field already defined:#{name} for class #{for_class.name}" if index
       #puts "Define field #{name} on class #{for_class.name}"
-      index = for_class.object_layout.add_instance_variable( name ) #TODO need typing
+      index = for_class.object_layout.add_instance_variable( name , type )
 
       # not sure how to run class code yet. later
       raise "value #{value}" if value

lib/soml/compiler/if_statement.rb

@@ -12,14 +12,14 @@ module Soml
       process(condition)
 
       branch_class = Object.const_get "Register::Is#{branch_type.capitalize}"
-      true_block = Register::Label.new(statement, "if_true")
+      true_block = Register::Label.new(if_true, "if_true")
       add_code branch_class.new( condition , true_block )
 
       # compile the false block
       reset_regs
       process_all(if_false) if if_false
       merge = Register::Label.new(statement , "if_merge")
-      add_code Register::Branch.new(statement, merge )
+      add_code Register::Branch.new(if_false, merge )
 
       # compile the true block
       add_code true_block