[vala/staging] Revert "codegen: Use copies of error_variable of catch-clauses for nested usage"

[Rico Tzschichholz <ricotz src gnome org>]

commit 23e0df7fc01ef019cabcc13ccb08b663e3c6fc51
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Jan 21 16:03:14 2019 +0100

    Revert "codegen: Use copies of error_variable of catch-clauses for nested usage"
    
    This reverts commit 765c39c73c3096dd1de984db023763ec13448ef5.
    
    Fixes https://gitlab.gnome.org/GNOME/vala/issues/741

 codegen/valagerrormodule.vala | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/codegen/valagerrormodule.vala b/codegen/valagerrormodule.vala
index c10826218..d29d09ca1 100644
--- a/codegen/valagerrormodule.vala
+++ b/codegen/valagerrormodule.vala
@@ -353,12 +353,8 @@ public class Vala.GErrorModule : CCodeDelegateModule {
                ccode.open_block ();
 
                if (clause.error_variable != null) {
-                       // use a copy for possible nested usage
-                       var error_variable = new LocalVariable (clause.error_type.copy (), 
clause.variable_name);
-                       error_variable.active = true;
-                       error_variable.checked = true;
-                       visit_local_variable (error_variable);
-                       ccode.add_assignment (get_variable_cexpression (get_local_cname (error_variable)), 
get_variable_cexpression ("_inner_error_"));
+                       visit_local_variable (clause.error_variable);
+                       ccode.add_assignment (get_variable_cexpression (get_local_cname 
(clause.error_variable)), get_variable_cexpression ("_inner_error_"));
                } else {
                        // error object is not used within catch statement, clear it
                        var cclear = new CCodeFunctionCall (new CCodeIdentifier ("g_clear_error"));