build(string): Decouple AsciiString / UnicodeString debug pointer from RTS_DEBUG

[Caball009]

This PR makes it possible to inspect strings AsciiString and UnicodeString in debug builds without RTS_DEBUG enabled.

RTS_DEBUG makes game starts noticeably slower so I don't always use it. It's still nice to be able to see the contents of strings in the Visual Studio debugger without any additional effort, though.

[greptile-apps]

Greptile Summary

This PR makes string contents visible in debugger builds without requiring RTS_DEBUG.

• Adds _DEBUG to the debug-pointer layout guard.
• Initializes the debug pointers under the matching condition.
• Applies the same change to ASCII and Unicode strings.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.

Important Files Changed

Filename	Overview
Core/GameEngine/Include/Common/AsciiString.h	Enables the private debugger pointer for _DEBUG builds.
Core/GameEngine/Include/Common/UnicodeString.h	Enables the private debugger pointer for _DEBUG builds.
Core/GameEngine/Source/Common/System/AsciiString.cpp	Initializes the ASCII debugger pointer with the matching guard.
Core/GameEngine/Source/Common/System/UnicodeString.cpp	Initializes the Unicode debugger pointer with the matching guard.

_{Reviews (1): Last reviewed commit: "build(string): Decouple AsciiString/Unic..." | Re-trigger Greptile}

[xezon]

Is this for VC6 or modern Visual Studio?

Modern Visual Studio should be covered by the natvis.

[Caball009]

Visual Studio.

Modern Visual Studio should be covered by the natvis.

How so?

[xezon]

The natvis files are automatically loaded by Visual Studio. They make the debugger show the text.

->

[Caball009]

It stopped working for me at some point. I just reset the CMake cache and rebuild the entire solution and it's working again :)

I'm closing this PR.