merge revision(s) 65460: [Backport #15271]

	parse.y: last location from bison

	* parse.y (command): set the last location from the location
	  managed by bison, so that other nodes are not needed.
	  [ruby-core:89648] [Bug #15271]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@65581 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

parse.y

@@ -1673,7 +1673,7 @@ command		: fcall command_args       %prec tLOWEST
 		    /*%%%*/
 			$$ = $1;
 			$$->nd_args = $2;
-			nd_set_last_loc($1, nd_last_loc($2));
+			nd_set_last_loc($1, @2.last_loc);
 		    /*%
 			$$ = dispatch2(command, $1, $2);
 		    %*/
@@ -1686,7 +1686,7 @@ command		: fcall command_args       %prec tLOWEST
 			fixpos($$, $1);
 		    /*%%%*/
 			$$->nd_loc = @$;
-			nd_set_last_loc($1, nd_last_loc($2));
+			nd_set_last_loc($1, @2.last_loc);
 		    /*%
 		    %*/
 		    }

test/ruby/test_syntax.rb

@@ -179,6 +179,11 @@ def test_keyword_empty_splat
       bug13756 = '[ruby-core:82113] [Bug #13756]'
       assert_valid_syntax("defined? foo(**{})", bug13756)
     end;
+    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    begin;
+      bug15271 = '[ruby-core:89648] [Bug #15271]'
+      assert_valid_syntax("a **{}", bug15271)
+    end;
   end
 
   def test_keyword_self_reference

version.h

@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.5.4"
 #define RUBY_RELEASE_DATE "2018-11-07"
-#define RUBY_PATCHLEVEL 109
+#define RUBY_PATCHLEVEL 110
 
 #define RUBY_RELEASE_YEAR 2018
 #define RUBY_RELEASE_MONTH 11