error.c(rb_error_write): Remove ec_ from its name

It's unrelated to rb_execution_context_t during writing the patch
r61154

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61161 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

error.c

@@ -951,7 +951,7 @@ exc_to_s(VALUE exc)
 }
 
 /* FIXME: Include eval_error.c */
-void rb_ec_error_write(VALUE errinfo, VALUE errat, VALUE str);
+void rb_error_write(VALUE errinfo, VALUE errat, VALUE str);
 
 /*
  * call-seq:
@@ -968,7 +968,7 @@ exc_full_message(VALUE exc)
 {
     VALUE str = rb_str_new2("");
     VALUE errat = rb_get_backtrace(exc);
-    rb_ec_error_write(exc, errat, str);
+    rb_error_write(exc, errat, str);
     return str;
 }
 

eval_error.c

@@ -188,7 +188,7 @@ print_backtrace(const VALUE eclass, const VALUE errat, const VALUE str, int reve
 }
 
 void
-rb_ec_error_write(VALUE errinfo, VALUE errat, VALUE str)
+rb_error_write(VALUE errinfo, VALUE errat, VALUE str)
 {
     volatile VALUE eclass = Qundef, emesg = Qundef;
 
@@ -231,7 +231,7 @@ rb_ec_error_print(rb_execution_context_t * volatile ec, volatile VALUE errinfo)
 	errat = rb_get_backtrace(errinfo);
     }
 
-    rb_ec_error_write(errinfo, errat, Qnil);
+    rb_error_write(errinfo, errat, Qnil);
 
     EC_POP_TAG();
     ec->errinfo = errinfo;