Fix location for "invalid trailing comma in call" errors (#13964)

Author: HertzDevil

spec/compiler/parser/parser_spec.cr

@@ -2087,13 +2087,14 @@ module Crystal
       end
       )
 
-    assert_syntax_error %(
+    assert_syntax_error <<-CRYSTAL, "invalid trailing comma in call", line: 2, column: 8
       if 1
         foo 1,
       end
-      ), "invalid trailing comma in call"
+      CRYSTAL
+
+    assert_syntax_error "foo 1,", "invalid trailing comma in call", line: 1, column: 6
 
-    assert_syntax_error "foo 1,", "invalid trailing comma in call"
     assert_syntax_error "def foo:String\nend", "a space is mandatory between ':' and return type"
     assert_syntax_error "def foo :String\nend", "a space is mandatory between ':' and return type"
     assert_syntax_error "def foo():String\nend", "a space is mandatory between ':' and return type"

src/compiler/crystal/syntax/parser.cr

@@ -4753,7 +4753,7 @@ module Crystal
           location = @token.location
           slash_is_regex!
           next_token_skip_space_or_newline
-          raise "invalid trailing comma in call" if (@token.keyword?(:end) && !next_comes_colon_space?) || @token.type.eof?
+          raise "invalid trailing comma in call", location if (@token.keyword?(:end) && !next_comes_colon_space?) || @token.type.eof?
         else
           break
         end