glsl2: Clone methods return the type of the thing being cloned
This is as opposed to returning the type of the base class of the hierarchy.
diff --git a/src/glsl/ir_function_inlining.cpp b/src/glsl/ir_function_inlining.cpp
index b3d1f1d..6fe1264 100644
--- a/src/glsl/ir_function_inlining.cpp
+++ b/src/glsl/ir_function_inlining.cpp
@@ -137,7 +137,7 @@
ir_rvalue *param = (ir_rvalue *) param_iter.get();
/* Generate a new variable for the parameter. */
- parameters[i] = (ir_variable *)sig_param->clone(ht);
+ parameters[i] = sig_param->clone(ht);
parameters[i]->mode = ir_var_auto;
next_ir->insert_before(parameters[i]);