Rename `str2var` to `str_to_var` and similar

Affects the Math class, a good chunk of the audio code, and a lot of other miscellaneous classes, too.

- `var2str` -> `var_to_str`
- `str2var` -> `str_to_var`
- `bytes2var` -> `bytes_to_var`
- `bytes2var_with_objects` -> `bytes_to_var_with_objects`
- `var2bytes` -> `var_to_bytes`
- `var2bytes_with_objects` -> `var_to_bytes_with_objects`
- `linear2db` -> `linear_to_db`
- `db2linear` -> `db_to_linear`
- `deg2rad` -> `deg_to_rad`
- `rad2deg` -> `rad_to_deg`

- `dict2inst` -> `dict_to_inst`
- `inst2dict` -> `inst_to_dict`

2 files changed, 2 insertions, 2 deletions

diff --git a/scene/animation/animation_player.cpp b/scene/animation/animation_player.cpp
index 48626ccc1b..0e2598cbc7 100644
--- a/scene/animation/animation_player.cpp
+++ b/scene/animation/animation_player.cpp
@@ -1151,7 +1151,7 @@ void AnimationPlayer::_animation_update_transforms() {
 				}
 #endif
 
-				static_cast<Node2D *>(pa->object)->set_rotation(Math::deg2rad((double)pa->value_accum));
+				static_cast<Node2D *>(pa->object)->set_rotation(Math::deg_to_rad((double)pa->value_accum));
 			} break;
 			case SP_NODE2D_SCALE: {
 #ifdef DEBUG_ENABLED
diff --git a/scene/animation/animation_tree.cpp b/scene/animation/animation_tree.cpp
index 7dbe892299..ee552e695e 100644
--- a/scene/animation/animation_tree.cpp
+++ b/scene/animation/animation_tree.cpp
@@ -1528,7 +1528,7 @@ void AnimationTree::_process_graph(double p_delta) {
 							}
 						}
 
-						real_t db = Math::linear2db(MAX(blend, 0.00001));
+						real_t db = Math::linear_to_db(MAX(blend, 0.00001));
 						if (t->object->has_method(SNAME("set_unit_db"))) {
 							t->object->call(SNAME("set_unit_db"), db);
 						} else {