vm_core.h: stringify in VM_ASSERT

* vm_core.h (VM_ASSERT): stringify expr here before expansion in
  RUBY_ASSERT_WHEN.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56378 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/vm_core.h b/vm_core.h
index ccba902a36..f3e9a72cb0 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -46,7 +46,7 @@
 
 #if VM_CHECK_MODE > 0
 #define VM_ASSERT(expr) ( \
-	RUBY_ASSERT_WHEN(VM_CHECK_MODE > 0, expr))
+	RUBY_ASSERT_MESG_WHEN(VM_CHECK_MODE > 0, expr, #expr))
 
 #define VM_UNREACHABLE(func) rb_bug(#func ": unreachable")