merge revision(s) 382678d4112f4afc6272244c22924d2b004274b1: [Backport #19788]

	[Bug #19788] Use the result of `tCOLON2` event

	---
	 parse.y                            | 16 ++++++++--------
	 test/ripper/test_parser_events.rb  | 17 +++++++++++++++++
	 test/ripper/test_scanner_events.rb |  5 +++++
	 3 files changed, 30 insertions(+), 8 deletions(-)

2 files changed, 22 insertions, 0 deletions

diff --git a/test/ripper/test_parser_events.rb b/test/ripper/test_parser_events.rb
index 1ea8d23378..c4d9a627a6 100644
--- a/test/ripper/test_parser_events.rb
+++ b/test/ripper/test_parser_events.rb
@@ -499,6 +499,23 @@ class TestRipper::ParserEvents < Test::Unit::TestCase
     assert_equal "[call(ref(self),&.,foo,[])]", tree
   end
 
+  def test_call_colon2
+    hook = Module.new do
+      def on_op(op)
+        super("(op: #{op.inspect})")
+      end
+      def on_call(recv, name, *args)
+        super(recv, "(method: #{name})", *args)
+      end
+      def on_ident(name)
+        super("(ident: #{name.inspect})")
+      end
+    end
+
+    parser = DummyParser.new("a::b").extend(hook)
+    assert_equal '[call(vcall((ident: "a")),(method: (op: "::")),(ident: "b"))]', parser.parse.to_s
+  end
+
   def test_excessed_comma
     thru_excessed_comma = false
     parse("proc{|x,|}", :on_excessed_comma) {thru_excessed_comma = true}
diff --git a/test/ripper/test_scanner_events.rb b/test/ripper/test_scanner_events.rb
index 13bd44e83d..f75c61765c 100644
--- a/test/ripper/test_scanner_events.rb
+++ b/test/ripper/test_scanner_events.rb
@@ -179,6 +179,11 @@ class TestRipper::ScannerEvents < Test::Unit::TestCase
                  scan('backtick', %q[p `make all`])
   end
 
+  def test_colon2_call
+    assert_equal ["::"],
+                 scan('op', %q[ a::b ])
+  end
+
   def test_comma
     assert_equal [','] * 6,
                  scan('comma', %q[ m(0,1,2,3,4,5,6) ])