Core: Ensure classes match their header filename

Also drop some unused files.

Renamed:
- `core/dvector.h` -> `pool_vector.h`
- `core/io/resource_import.h` -> `resource_importer.h`
- `core/sort.h` -> `sort_array.h`
- `core/string_db.h` -> `string_name.h`

Dropped:
- `core/allocators.h`
- `core/os/shell.h`
- `core/variant_construct_string.cpp`

1 files changed, 0 insertions, 426 deletions

diff --git a/core/string_db.cpp b/core/string_db.cpp
deleted file mode 100644
index c776c56023..0000000000
--- a/core/string_db.cpp
+++ /dev/null
@@ -1,426 +0,0 @@
-/*************************************************************************/
-/*  string_db.cpp                                                        */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "string_db.h"
-
-#include "core/os/os.h"
-#include "core/print_string.h"
-
-StaticCString StaticCString::create(const char *p_ptr) {
-	StaticCString scs;
-	scs.ptr = p_ptr;
-	return scs;
-}
-
-StringName::_Data *StringName::_table[STRING_TABLE_LEN];
-
-StringName _scs_create(const char *p_chr) {
-
-	return (p_chr[0] ? StringName(StaticCString::create(p_chr)) : StringName());
-}
-
-bool StringName::configured = false;
-Mutex *StringName::lock = NULL;
-
-void StringName::setup() {
-
-	lock = Mutex::create();
-
-	ERR_FAIL_COND(configured);
-	for (int i = 0; i < STRING_TABLE_LEN; i++) {
-
-		_table[i] = NULL;
-	}
-	configured = true;
-}
-
-void StringName::cleanup() {
-
-	lock->lock();
-
-	int lost_strings = 0;
-	for (int i = 0; i < STRING_TABLE_LEN; i++) {
-
-		while (_table[i]) {
-
-			_Data *d = _table[i];
-			lost_strings++;
-			if (OS::get_singleton()->is_stdout_verbose()) {
-				if (d->cname) {
-					print_line("Orphan StringName: " + String(d->cname));
-				} else {
-					print_line("Orphan StringName: " + String(d->name));
-				}
-			}
-
-			_table[i] = _table[i]->next;
-			memdelete(d);
-		}
-	}
-	if (lost_strings) {
-		print_verbose("StringName: " + itos(lost_strings) + " unclaimed string names at exit.");
-	}
-	lock->unlock();
-
-	memdelete(lock);
-}
-
-void StringName::unref() {
-
-	ERR_FAIL_COND(!configured);
-
-	if (_data && _data->refcount.unref()) {
-
-		lock->lock();
-
-		if (_data->prev) {
-			_data->prev->next = _data->next;
-		} else {
-			if (_table[_data->idx] != _data) {
-				ERR_PRINT("BUG!");
-			}
-			_table[_data->idx] = _data->next;
-		}
-
-		if (_data->next) {
-			_data->next->prev = _data->prev;
-		}
-		memdelete(_data);
-		lock->unlock();
-	}
-
-	_data = NULL;
-}
-
-bool StringName::operator==(const String &p_name) const {
-
-	if (!_data) {
-
-		return (p_name.length() == 0);
-	}
-
-	return (_data->get_name() == p_name);
-}
-
-bool StringName::operator==(const char *p_name) const {
-
-	if (!_data) {
-
-		return (p_name[0] == 0);
-	}
-
-	return (_data->get_name() == p_name);
-}
-
-bool StringName::operator!=(const String &p_name) const {
-
-	return !(operator==(p_name));
-}
-
-bool StringName::operator!=(const StringName &p_name) const {
-
-	// the real magic of all this mess happens here.
-	// this is why path comparisons are very fast
-	return _data != p_name._data;
-}
-
-void StringName::operator=(const StringName &p_name) {
-
-	if (this == &p_name)
-		return;
-
-	unref();
-
-	if (p_name._data && p_name._data->refcount.ref()) {
-
-		_data = p_name._data;
-	}
-}
-
-StringName::StringName(const StringName &p_name) {
-
-	_data = NULL;
-
-	ERR_FAIL_COND(!configured);
-
-	if (p_name._data && p_name._data->refcount.ref()) {
-		_data = p_name._data;
-	}
-}
-
-StringName::StringName(const char *p_name) {
-
-	_data = NULL;
-
-	ERR_FAIL_COND(!configured);
-
-	if (!p_name || p_name[0] == 0)
-		return; //empty, ignore
-
-	lock->lock();
-
-	uint32_t hash = String::hash(p_name);
-
-	uint32_t idx = hash & STRING_TABLE_MASK;
-
-	_data = _table[idx];
-
-	while (_data) {
-
-		// compare hash first
-		if (_data->hash == hash && _data->get_name() == p_name)
-			break;
-		_data = _data->next;
-	}
-
-	if (_data) {
-		if (_data->refcount.ref()) {
-			// exists
-			lock->unlock();
-			return;
-		} else {
-		}
-	}
-
-	_data = memnew(_Data);
-	_data->name = p_name;
-	_data->refcount.init();
-	_data->hash = hash;
-	_data->idx = idx;
-	_data->cname = NULL;
-	_data->next = _table[idx];
-	_data->prev = NULL;
-	if (_table[idx])
-		_table[idx]->prev = _data;
-	_table[idx] = _data;
-
-	lock->unlock();
-}
-
-StringName::StringName(const StaticCString &p_static_string) {
-
-	_data = NULL;
-
-	ERR_FAIL_COND(!configured);
-
-	ERR_FAIL_COND(!p_static_string.ptr || !p_static_string.ptr[0]);
-
-	lock->lock();
-
-	uint32_t hash = String::hash(p_static_string.ptr);
-
-	uint32_t idx = hash & STRING_TABLE_MASK;
-
-	_data = _table[idx];
-
-	while (_data) {
-
-		// compare hash first
-		if (_data->hash == hash && _data->get_name() == p_static_string.ptr)
-			break;
-		_data = _data->next;
-	}
-
-	if (_data) {
-		if (_data->refcount.ref()) {
-			// exists
-			lock->unlock();
-			return;
-		} else {
-		}
-	}
-
-	_data = memnew(_Data);
-
-	_data->refcount.init();
-	_data->hash = hash;
-	_data->idx = idx;
-	_data->cname = p_static_string.ptr;
-	_data->next = _table[idx];
-	_data->prev = NULL;
-	if (_table[idx])
-		_table[idx]->prev = _data;
-	_table[idx] = _data;
-
-	lock->unlock();
-}
-
-StringName::StringName(const String &p_name) {
-
-	_data = NULL;
-
-	ERR_FAIL_COND(!configured);
-
-	if (p_name == String())
-		return;
-
-	lock->lock();
-
-	uint32_t hash = p_name.hash();
-
-	uint32_t idx = hash & STRING_TABLE_MASK;
-
-	_data = _table[idx];
-
-	while (_data) {
-
-		if (_data->hash == hash && _data->get_name() == p_name)
-			break;
-		_data = _data->next;
-	}
-
-	if (_data) {
-		if (_data->refcount.ref()) {
-			// exists
-			lock->unlock();
-			return;
-		} else {
-		}
-	}
-
-	_data = memnew(_Data);
-	_data->name = p_name;
-	_data->refcount.init();
-	_data->hash = hash;
-	_data->idx = idx;
-	_data->cname = NULL;
-	_data->next = _table[idx];
-	_data->prev = NULL;
-	if (_table[idx])
-		_table[idx]->prev = _data;
-	_table[idx] = _data;
-
-	lock->unlock();
-}
-
-StringName StringName::search(const char *p_name) {
-
-	ERR_FAIL_COND_V(!configured, StringName());
-
-	ERR_FAIL_COND_V(!p_name, StringName());
-	if (!p_name[0])
-		return StringName();
-
-	lock->lock();
-
-	uint32_t hash = String::hash(p_name);
-
-	uint32_t idx = hash & STRING_TABLE_MASK;
-
-	_Data *_data = _table[idx];
-
-	while (_data) {
-
-		// compare hash first
-		if (_data->hash == hash && _data->get_name() == p_name)
-			break;
-		_data = _data->next;
-	}
-
-	if (_data && _data->refcount.ref()) {
-		lock->unlock();
-
-		return StringName(_data);
-	}
-
-	lock->unlock();
-	return StringName(); //does not exist
-}
-
-StringName StringName::search(const CharType *p_name) {
-
-	ERR_FAIL_COND_V(!configured, StringName());
-
-	ERR_FAIL_COND_V(!p_name, StringName());
-	if (!p_name[0])
-		return StringName();
-
-	lock->lock();
-
-	uint32_t hash = String::hash(p_name);
-
-	uint32_t idx = hash & STRING_TABLE_MASK;
-
-	_Data *_data = _table[idx];
-
-	while (_data) {
-
-		// compare hash first
-		if (_data->hash == hash && _data->get_name() == p_name)
-			break;
-		_data = _data->next;
-	}
-
-	if (_data && _data->refcount.ref()) {
-		lock->unlock();
-		return StringName(_data);
-	}
-
-	lock->unlock();
-	return StringName(); //does not exist
-}
-StringName StringName::search(const String &p_name) {
-
-	ERR_FAIL_COND_V(p_name == "", StringName());
-
-	lock->lock();
-
-	uint32_t hash = p_name.hash();
-
-	uint32_t idx = hash & STRING_TABLE_MASK;
-
-	_Data *_data = _table[idx];
-
-	while (_data) {
-
-		// compare hash first
-		if (_data->hash == hash && p_name == _data->get_name())
-			break;
-		_data = _data->next;
-	}
-
-	if (_data && _data->refcount.ref()) {
-		lock->unlock();
-		return StringName(_data);
-	}
-
-	lock->unlock();
-	return StringName(); //does not exist
-}
-
-StringName::StringName() {
-
-	_data = NULL;
-}
-
-StringName::~StringName() {
-
-	unref();
-}