[Bug #21986] Fix location of numeric literal

When checking for suffixes, do not flush the numeric literal token
even if no suffix is found.

Author: nobu

parse.y

@@ -8927,7 +8927,6 @@ number_literal_suffix(struct parser_params *p, int mask)
         }
         if (!ISASCII(c) || ISALPHA(c) || c == '_') {
             p->lex.pcur = lastp;
-            literal_flush(p, p->lex.pcur);
             return 0;
         }
         pushback(p, c);

test/ruby/test_ast.rb

@@ -1751,6 +1751,14 @@ def test_negative_numeric_locations
       assert_locations(node.children.last.locations, [[1, 0, 1, 2]])
     end
 
+    def test_numeric_location_with_nonsuffix
+      node = ast_parse("1if true")
+      assert_locations(node.children.last.children[1].locations, [[1, 0, 1, 1]])
+
+      node = ast_parse("1q", error_tolerant: true)
+      assert_locations(node.children.last.locations, [[1, 0, 1, 1]])
+    end
+
     private
     def ast_parse(src, **options)
       begin