Regexp#match{?} with nil raises TypeError as String, Symbol (#1506)

* {String|Symbol}#match{?} with nil returns falsy

To improve consistency with Regexp#match{?}

* String#match(nil) returns `nil` instead of TypeError
* String#match?(nil) returns `false` instead of TypeError
* Symbol#match(nil) returns `nil` instead of TypeError
* Symbol#match?(nil) returns `false` instead of TypeError

* Prefer exception

* Follow empty ENV

* Drop outdated specs

* Write ruby/spec for above

https://github.com/ruby/ruby/pull/1506/files#r183242981

* Fix merge miss

1 files changed, 5 insertions, 0 deletions

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index 13d7cc9d57..d657f1aae6 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -367,6 +367,7 @@ class TestSymbol < Test::Unit::TestCase
 
   def test_match_method
     assert_equal("bar", :"foobarbaz".match(/bar/).to_s)
+    assert_raise(TypeError) { :"".match(nil) }
 
     o = Regexp.new('foo')
     def o.match(x, y, z); x + y + z; end
@@ -420,6 +421,10 @@ class TestSymbol < Test::Unit::TestCase
     assert_equal('backref', $&)
   end
 
+  def test_match_p_nil
+    assert_raise(TypeError) { :''.match?(nil) }
+  end
+
   def test_symbol_popped
     assert_nothing_raised { eval('a = 1; :"#{ a }"; 1') }
   end