codegen: Don't pass CCodeFunctionCall to NULL-aware free macro

This resulted in invalid C code:
    error: lvalue required as left operand of assignment

diff --git a/codegen/valaccodebasemodule.vala b/codegen/valaccodebasemodule.vala
index 9318bc721a5f139a08f649bf24cdee84d4b69dda..b87cf2974ca7fa539127eaea892a3dc070962915 100644 (file)
--- a/codegen/valaccodebasemodule.vala
+++ b/codegen/valaccodebasemodule.vala
@@ -3568,6 +3568,8 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
                        // FIXME this breaks in our macro, so this should not happen
                        if (cvar is CCodeCastExpression) {
                                cvar = ((CCodeCastExpression) cvar).inner;
+                       } else if (cvar is CCodeFunctionCall) {
+                               cvar = ((CCodeFunctionCall) cvar).get_arguments ()[0];
                        }
 
                        ccall = new CCodeFunctionCall (new CCodeIdentifier (free0_func));