glsl: Silence unused parameter warnings

glsl: Silence unused parameter warnings

glsl/ast_type.cpp: In function ‘void merge_bindless_qualifier(YYLTYPE*, _mesa_glsl_parse_state*, const ast_type_qualifier&, const ast_type_qualifier&)’:
glsl/ast_type.cpp:189:35: warning: unused parameter ‘loc’ [-Wunused-parameter]
 merge_bindless_qualifier(YYLTYPE *loc,
                                   ^~~
glsl/ast_type.cpp:191:52: warning: unused parameter ‘qualifier’ [-Wunused-parameter]
                          const ast_type_qualifier &qualifier,
                                                    ^~~~~~~~~
glsl/ast_type.cpp:192:52: warning: unused parameter ‘new_qualifier’ [-Wunused-parameter]
                          const ast_type_qualifier &new_qualifier)
                                                    ^~~~~~~~~~~~~

glsl/ir_constant_expression.cpp: In member function ‘virtual ir_constant* ir_rvalue::constant_expression_value(void*, hash_table*)’:
glsl/ir_constant_expression.cpp:512:44: warning: unused parameter ‘mem_ctx’ [-Wunused-parameter]
 ir_rvalue::constant_expression_value(void *mem_ctx, struct hash_table *)
                                            ^~~~~~~
glsl/ir_constant_expression.cpp: In member function ‘virtual ir_constant* ir_texture::constant_expression_value(void*, hash_table*)’:
glsl/ir_constant_expression.cpp:705:45: warning: unused parameter ‘mem_ctx’ [-Wunused-parameter]
 ir_texture::constant_expression_value(void *mem_ctx, struct hash_table *)
                                             ^~~~~~~
glsl/ir_constant_expression.cpp: In member function ‘virtual ir_constant* ir_assignment::constant_expression_value(void*, hash_table*)’:
glsl/ir_constant_expression.cpp:851:48: warning: unused parameter ‘mem_ctx’ [-Wunused-parameter]
 ir_assignment::constant_expression_value(void *mem_ctx, struct hash_table *)
                                                ^~~~~~~
glsl/ir_constant_expression.cpp: In member function ‘virtual ir_constant* ir_constant::constant_expression_value(void*, hash_table*)’:
glsl/ir_constant_expression.cpp:859:46: warning: unused parameter ‘mem_ctx’ [-Wunused-parameter]
 ir_constant::constant_expression_value(void *mem_ctx, struct hash_table *)
                                              ^~~~~~~

glsl/linker.cpp: In function ‘void link_xfb_stride_layout_qualifiers(gl_context*, gl_shader_program*, gl_linked_shader*, gl_shader**, unsigned int)’:
glsl/linker.cpp:1655:60: warning: unused parameter ‘linked_shader’ [-Wunused-parameter]
                                   struct gl_linked_shader *linked_shader,
                                                            ^~~~~~~~~~~~~
glsl/linker.cpp: In function ‘void link_bindless_layout_qualifiers(gl_shader_program*, gl_program*, gl_shader**, unsigned int)’:
glsl/linker.cpp:1693:52: warning: unused parameter ‘gl_prog’ [-Wunused-parameter]
                                 struct gl_program *gl_prog,
                                                    ^~~~~~~

glsl/lower_distance.cpp: In member function ‘virtual void {anonymous}::lower_distance_visitor_counter::handle_rvalue(ir_rvalue**)’:
glsl/lower_distance.cpp:652:59: warning: unused parameter ‘rv’ [-Wunused-parameter]
 lower_distance_visitor_counter::handle_rvalue(ir_rvalue **rv)
                                                           ^~

glsl/opt_array_splitting.cpp: In member function ‘virtual ir_visitor_status {anonymous}::ir_array_reference_visitor::visit_leave(ir_assignment*)’:
glsl/opt_array_splitting.cpp:198:56: warning: unused parameter ‘ir’ [-Wunused-parameter]
 ir_array_reference_visitor::visit_leave(ir_assignment *ir)
                                                        ^~

glsl/glsl_parser_extras.cpp: In function ‘void assign_subroutine_indexes(gl_shader*, _mesa_glsl_parse_state*)’:
glsl/glsl_parser_extras.cpp:1869:45: warning: unused parameter ‘sh’ [-Wunused-parameter]
 assign_subroutine_indexes(struct gl_shader *sh,
                                             ^~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>