glsl: apply_implicit_conversion is static again

Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Signed-off-by: Andres Gomez <agomez@igalia.com>

src/compiler/glsl/ast_function.cpp

@@ -31,10 +31,6 @@
 static ir_rvalue *
 convert_component(ir_rvalue *src, const glsl_type *desired_type);
 
-bool
-apply_implicit_conversion(const glsl_type *to, ir_rvalue * &from,
-                          struct _mesa_glsl_parse_state *state);
-
 static unsigned
 process_parameters(exec_list *instructions, exec_list *actual_parameters,
 		   exec_list *parameters,

src/compiler/glsl/ast_to_hir.cpp

@@ -280,7 +280,7 @@ get_implicit_conversion_operation(const glsl_type *to, const glsl_type *from,
  * If a conversion is possible (or unnecessary), \c true is returned.
  * Otherwise \c false is returned.
  */
-bool
+static bool
 apply_implicit_conversion(const glsl_type *to, ir_rvalue * &from,
                           struct _mesa_glsl_parse_state *state)
 {