Fix repeated conditional when local variables in diff methods

Fixes troessner#1455

lib/reek/smell_detectors/repeated_conditional.rb

@@ -74,13 +74,18 @@ def max_identical_ifs
       # @quality :reek:TooManyStatements { max_statements: 9 }
       def conditional_counts
         result = Hash.new { |hash, key| hash[key] = [] }
-        collector = proc do |node|
-          next unless (condition = node.condition)
-          next if condition == BLOCK_GIVEN_CONDITION
+        collector = proc do |method|
+          [:if, :case].map do |stmt|
+            method.each_node(stmt) do |node|
+              next unless (condition = node.condition)
+              next if condition == BLOCK_GIVEN_CONDITION
 
-          result[condition].push(condition.line)
+              result[method.name].push(condition.line)
+            end
+          end
         end
-        [:if, :case].each { |stmt| context.local_nodes(stmt, &collector) }
+        context.local_nodes(:def, &collector)
+
         result
       end
     end

spec/reek/smell_detectors/repeated_conditional_spec.rb

@@ -97,4 +97,27 @@ def echo
 
     expect(src).to reek_of(:RepeatedConditional)
   end
+
+  it 'does not report local repeated conditionals' do
+    src = <<-RUBY
+      class Alfa
+        def bravo
+          charlie = true
+          puts "Repeat 1!" if charlie
+        end
+
+        def delta
+          charlie = false
+          puts "Repeat 2!" if charlie
+        end
+
+        def echo
+          charlie = 123
+          puts "Repeat 3!" if charlie
+        end
+      end
+    RUBY
+
+    expect(src).not_to reek_of(:RepeatedConditional)
+  end
 end