nir/types: Add a glsl_get_component_slots() utility

It is basically a wrapper around glsl_type::component_slots().

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

src/compiler/nir_types.cpp

@@ -124,6 +124,12 @@ glsl_count_attribute_slots(const struct glsl_type *type,
    return type->count_attribute_slots(is_vertex_input);
 }
 
+unsigned
+glsl_get_component_slots(const struct glsl_type *type)
+{
+   return type->component_slots();
+}
+
 const char *
 glsl_get_struct_elem_name(const struct glsl_type *type, unsigned index)
 {

src/compiler/nir_types.h

@@ -73,6 +73,7 @@ unsigned glsl_get_aoa_size(const struct glsl_type *type);
 
 unsigned glsl_count_attribute_slots(const struct glsl_type *type,
                                     bool is_vertex_input);
+unsigned glsl_get_component_slots(const struct glsl_type *type);
 
 const char *glsl_get_struct_elem_name(const struct glsl_type *type,
                                       unsigned index);