[vala] Fix subtle bug in flowanalyzer that made the compiler crash

[Luca Bruno <lucabru src gnome org>]

commit e3cccfb75832fae388bcf773c7b75561dac91b68
Author: Luca Bruno <lucabru src gnome org>
Date:   Wed Oct 2 22:11:46 2013 +0200

    Fix subtle bug in flowanalyzer that made the compiler crash
    
    By not copying the datatype the parent_node was overwritten.
    The bug was reproducible only with G_SLICE=always-malloc .

 vala/valaflowanalyzer.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/vala/valaflowanalyzer.vala b/vala/valaflowanalyzer.vala
index 4528337..62dc58a 100644
--- a/vala/valaflowanalyzer.vala
+++ b/vala/valaflowanalyzer.vala
@@ -514,10 +514,10 @@ public class Vala.FlowAnalyzer : CodeVisitor {
                }
                Variable versioned_var;
                if (var_symbol is LocalVariable) {
-                       versioned_var = new LocalVariable (var_symbol.variable_type, var_symbol.name, null, 
var_symbol.source_reference);
+                       versioned_var = new LocalVariable (var_symbol.variable_type.copy (), var_symbol.name, 
null, var_symbol.source_reference);
                } else {
                        // parameter
-                       versioned_var = new Parameter (var_symbol.name, var_symbol.variable_type, 
var_symbol.source_reference);
+                       versioned_var = new Parameter (var_symbol.name, var_symbol.variable_type.copy (), 
var_symbol.source_reference);
                }
                variable_stack.add (versioned_var);
                return versioned_var;