Cleanup mutator internals

* Rename emit_safe to emit
* Rename emit_unsafe to emit!

lib/mutant/mutator/call.rb

@@ -72,7 +72,7 @@ module Mutant
         mutant.privately = true
         # TODO: Fix rubinius to allow this as an attr_accessor
         mutant.instance_variable_set(:@vcall_style,true)
-        emit_safe(mutant)
+        emit(mutant)
       end
 
       # Emit mutations

lib/mutant/mutator/literal/boolean.rb

@@ -14,7 +14,7 @@ module Mutant
         #
         def dispatch
           emit_nil
-          emit_safe(inverse)
+          emit(inverse)
         end
 
         # Return inverse

lib/mutant/mutator/literal/empty_array.rb

@@ -16,7 +16,7 @@ module Mutant
         #
         def dispatch
           emit_nil
-          emit(Rubinius::AST::ArrayLiteral, [new_nil])
+          emit_node(Rubinius::AST::ArrayLiteral, [new_nil])
         end
       end
     end

lib/mutant/mutator/literal/float.rb

@@ -27,7 +27,7 @@ module Mutant
         #
         def emit_special_cases
           [infinity, negative_infinity, nan].each do |value|
-            emit_safe(value)
+            emit(value)
           end
         end
 

lib/mutant/mutator/literal/range.rb

@@ -15,7 +15,7 @@ module Mutant
         #
         def dispatch
           emit_nil
-          emit_safe(inverse)
+          emit(inverse)
           emit_range
         end
 

lib/mutant/mutator/receiver_case.rb

@@ -113,6 +113,7 @@ module Mutant
       # @api private
       #
       def dup_when_branches
+
         when_branches.dup
       end
 

spec/unit/mutant/mutator/emit_spec.rb

@@ -1,7 +1,7 @@
 require 'spec_helper'
 
-describe Mutant::Mutator, '#emit_safe' do
-  subject { object.send(:emit_safe, node) }
+describe Mutant::Mutator, '#emit' do
+  subject { object.send(:emit, node) }
 
   class Block
     attr_reader :arguments