Android d.ts generator fails to create typings for nested data class

从复现中链接的 Kotlin 函数声明开始，并将其输出与 issue 中显示的生成 typings 进行比较。跟踪 Android d.ts Generator 对嵌套 data classes 的处理，并通过在缺少模块大括号的情况下重新生成 typings 来验证其完成情况。

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 8.5
• Cross-platform modules: 8.5.0
• Android Runtime: 8.5.0
• Android d.ts Generator : 3.0.0
• iOS Runtime (if applicable): 8.5.1
• Plugin(s):

Describe the bug
It seems Android d.ts generator has trouble generating types for data classes declared inside functions.
Generator log output:

Android d.ts Generator Version : 3.0.0
ignoring definitions in missing dependency: android.text.TextWatcher
ignoring definitions in missing dependency: android.view.View$OnFocusChangeListener
Generation of definitions took 712ms.
Typings have been generated in the following directory: ./typings

To Reproduce
This is the kotlin function with class declaration: https://github.com/RedMadRobot/input-mask-android/blob/eee78324eb4cdb4faab3248ef646d5750507b598/inputmask/src/main/kotlin/com/redmadrobot/inputmask/MaskedTextChangedListener.kt#L294

These are the typings generated, you will notice a brace is missing on module pickMask:

export module MaskedTextChangedListener {
	export module pickMask {
	export module ValueListener {
		export class MaskAffinity {
			public static class: java.lang.Class<com.redmadrobot.inputmask.MaskedTextChangedListener.pickMask.MaskAffinity>;
			public component1(): com.redmadrobot.inputmask.helper.Mask;
			public getAffinity(): number;
			public component2(): number;
			public copy(param0: com.redmadrobot.inputmask.helper.Mask, param1: number): com.redmadrobot.inputmask.MaskedTextChangedListener.pickMask.MaskAffinity;
			public hashCode(): number;
			public equals(param0: any): boolean;
			public getMask(): com.redmadrobot.inputmask.helper.Mask;
			public toString(): string;
			public constructor(param0: com.redmadrobot.inputmask.helper.Mask, param1: number);
		}
	}
}

Expected behavior
Typings should be generated without problems.