vm_insnhelper.c: check symbol proc to throw

* vm_insnhelper.c (vm_throw_start): check if the iseq is symbol
  proc, class definition should not be a symbol proc.
  [ruby-core:75856] [Bug #12462]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55297 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index 8bb9902317..03934226a1 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -157,6 +157,15 @@ class TestSymbol < Test::Unit::TestCase
     assert_equal(1, first, bug11594)
   end
 
+  private def return_from_proc
+    Proc.new { return 1 }.tap(&:call)
+  end
+
+  def test_return_from_symbol_proc
+    bug12462 = '[ruby-core:75856] [Bug #12462]'
+    assert_equal(1, return_from_proc, bug12462)
+  end
+
   def test_to_proc_for_hash_each
     bug11830 = '[ruby-core:72205] [Bug #11830]'
     assert_normal_exit(<<-'end;', bug11830) # do