More WIP on compound assignments.

specs/fixtures/variables.bully

@@ -0,0 +1,60 @@
+module VariablesSpecs
+  class ParAsgn
+    attr_accessor :x
+
+    def initialize
+      @x = 0
+    end
+
+    def inc
+      @x += 1
+    end
+
+    def to_ary
+      [1,2,3,4]
+    end
+  end
+
+  class OpAsgn
+    attr_accessor :a, :b, :side_effect
+
+    def do_side_effect
+      self.side_effect = true
+      return @a
+    end
+
+    def do_more_side_effects
+      @a += 5
+      self
+    end
+
+    def do_bool_side_effects
+      @b += 1
+      self
+    end
+  end
+
+  class Hashalike
+    def [](k) k end
+    def []=(k, v) [k, v] end
+  end
+
+  def self.reverse_foo(a, b)
+    # FIXME:
+    # return b, a
+    return [b, a]
+  end
+
+  class ArrayLike
+    def initialize(array)
+      @array = array
+    end
+
+    def to_a
+      @array
+    end
+  end
+
+  class ArraySubclass < Array
+  end
+end