merge revision: 61746

`signed` is required for Rasbian (x86_64).

* tool/ruby_vm/views/_insn_stack_increase.erb: specify `signed` explicitly
  for systems which use `unsigned` for `char` type.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61792 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

tool/ruby_vm/views/_insn_stack_increase.erb

@@ -23,7 +23,7 @@ insn_stack_increase_dispatch(enum ruby_vminsn_type insn, const VALUE *opes)
         }.join(', ') -%>,
 % end
     };
-    char c = t[insn];
+    signed char c = t[insn];
 
     ASSERT_VM_INSTRUCTION_SIZE(t);
     if (c != -127) {