Merge pull request #1047 from ydah/update-rubocop

Bump rubocop from 1.24.1 to 1.42.0

Gemfile.lock

@@ -84,6 +84,8 @@ GEM
     ffi (1.15.5-java)
     i18n (1.8.11)
       concurrent-ruby (~> 1.0)
+    json (2.6.3)
+    json (2.6.3-java)
     matrix (0.4.2)
     method_source (1.0.0)
     middleware (0.1.0)
@@ -96,8 +98,8 @@ GEM
       racc (~> 1.4)
     nokogiri (1.12.5-java)
       racc (~> 1.4)
-    parallel (1.21.0)
-    parser (3.1.0.0)
+    parallel (1.22.1)
+    parser (3.1.3.0)
       ast (~> 2.4.1)
     power_assert (2.0.1)
     protobuf-cucumber (3.10.8)
@@ -120,7 +122,7 @@ GEM
       rack (>= 1.0, < 3)
     rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (2.2.0)
+    regexp_parser (2.6.1)
     rexml (3.2.5)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
@@ -135,17 +137,18 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.10.0)
     rspec-support (3.10.3)
-    rubocop (1.24.1)
+    rubocop (1.42.0)
+      json (~> 2.3)
       parallel (~> 1.10)
-      parser (>= 3.0.0.0)
+      parser (>= 3.1.2.1)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
-      rexml
-      rubocop-ast (>= 1.15.1, < 2.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.24.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.15.1)
-      parser (>= 3.0.1.1)
+    rubocop-ast (1.24.1)
+      parser (>= 3.1.1.0)
     ruby-progressbar (1.11.0)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.3)
@@ -160,7 +163,7 @@ GEM
     thread_safe (0.3.6-java)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (2.1.0)
+    unicode-display_width (2.3.0)
     webrick (1.7.0)
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)

lib/simplecov/source_file.rb

@@ -86,7 +86,7 @@ def covered_strength
     end
 
     def no_lines?
-      lines.length.zero? || (lines.length == never_lines.size)
+      lines.empty? || (lines.length == never_lines.size)
     end
 
     def relevant_lines