refactor(generators): Migrate Lua generators to TypeScript (#7654)

* refactor(generators): Migrate lua_generator.js to TypeScript

* refactor(generators): Migrate generators/lua/* to TypeScript

* fix(generators): Fix type errors in generator functions

* refactor(generators): Migrate generators/lua.js to TypeScript

* chore(generator): Format

* chore(generators): JSDoc and formatting tweaks for PR #7654

---------

Co-authored-by: Christopher Allen <cpcallen+git@google.com>

generators/lua.ts

@@ -0,0 +1,46 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * @file Complete helper functions for generating Lua for
+ *     blocks.  This is the entrypoint for lua_compressed.js.
+ */
+
+// Former goog.module ID: Blockly.Lua.all
+
+import {LuaGenerator} from './lua/lua_generator.js';
+import * as colour from './lua/colour.js';
+import * as lists from './lua/lists.js';
+import * as logic from './lua/logic.js';
+import * as loops from './lua/loops.js';
+import * as math from './lua/math.js';
+import * as procedures from './lua/procedures.js';
+import * as text from './lua/text.js';
+import * as variables from './lua/variables.js';
+import * as variablesDynamic from './lua/variables_dynamic.js';
+
+export * from './lua/lua_generator.js';
+
+/**
+ * Lua code generator instance.
+ */
+export const luaGenerator = new LuaGenerator();
+
+// Install per-block-type generator functions:
+const generators: typeof luaGenerator.forBlock = {
+  ...colour,
+  ...lists,
+  ...logic,
+  ...loops,
+  ...math,
+  ...procedures,
+  ...text,
+  ...variables,
+  ...variablesDynamic,
+};
+for (const name in generators) {
+  luaGenerator.forBlock[name] = generators[name];
+}