Fix unused variable warnings

Author: drbrain

lib/rdoc/parser/c.rb

@@ -174,7 +174,7 @@ def initialize top_level, file_name, content, options, stats
     @singleton_classes = load_variable_map :c_singleton_class_variables
 
     # class_variable => { function => [method, ...] }
-    @methods = Hash.new { |h, f| h[f] = Hash.new { |h, m| h[m] = [] } }
+    @methods = Hash.new { |h, f| h[f] = Hash.new { |i, m| i[m] = [] } }
 
     # missing variable => [handle_class_module arguments]
     @missing_dependencies = {}

test/test_rdoc_class_module.rb

@@ -270,8 +270,6 @@ def test_marshal_dump_visibilty
     section_comment.location = tl
 
     assert_equal 1, cm.sections.length, 'sanity, default section only'
-    s0 = cm.sections.first
-    s1 = cm.add_section 'section', section_comment
 
     cm.add_attribute a1
     cm.add_method m1
@@ -285,12 +283,6 @@ def test_marshal_dump_visibilty
 
     assert_equal cm, loaded
 
-    inner = RDoc::Markup::Document.new(
-      RDoc::Markup::Paragraph.new('this is a comment'))
-    inner.file = tl
-
-    comment = RDoc::Markup::Document.new inner
-
     assert_empty loaded.attributes
     assert_empty loaded.constants
     assert_empty loaded.includes

test/test_rdoc_rdoc.rb

@@ -165,8 +165,7 @@ def test_parse_file
   def test_parse_file_binary
     @rdoc.store = RDoc::Store.new
 
-    root       = File.dirname __FILE__
-    binary_dat = File.expand_path 'binary.dat', root
+    root = File.dirname __FILE__
 
     @rdoc.options.root = Pathname root