[llvm] Supports viewing class member variables in lambda when using the vs ebugger (PR #71564)

[via llvm-commits]

https://github.com/GkvJwa created https://github.com/llvm/llvm-project/pull/71564

Use "__this" in DataMemberRecord, make vs debugger can be parsed normally

>From 28745db1ff73210952c3ae27d080b250fc7e99c0 Mon Sep 17 00:00:00 2001
From: GkvJwa <gkvjwa at gmail.com>
Date: Wed, 8 Nov 2023 01:37:19 +0800
Subject: [PATCH] Supports viewing class member variables in lambda when using
 the vs debugger

Use "__this" in DataMemberRecord, make vs debugger can be parsed normally
---
 llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
index 3a9d5fa3b936e0e..a84ea6e4b2708d5 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
@@ -2605,6 +2605,9 @@ CodeViewDebug::lowerRecordFieldList(const DICompositeType *Ty) {
       MemberBaseType = TypeTable.writeLeafType(BFR);
     }
     uint64_t MemberOffsetInBytes = MemberOffsetInBits / 8;
+    if (Ty->getName().find_first_of("<lambda") != std::string::npos) {
+      MemberName = "__this";
+    }
     DataMemberRecord DMR(Access, MemberBaseType, MemberOffsetInBytes,
                          MemberName);
     ContinuationBuilder.writeMemberType(DMR);