[clang] Assertion `FromType->isRecordType()' failed.

Reproducer:
https://godbolt.org/z/zb1qzoYvs
```cpp
struct S {};
constexpr S s;

struct SS {
consteval const S *operator->() const { return &s; }
consteval int foo() const { return 42; }
};

_Atomic SS ss;

int v = ss->bar;
int x = ss.foo();
```

Backtrace:
```console
clang++: /root/llvm-project/llvm/tools/clang/lib/Sema/SemaOverload.cpp:6146: clang::ImplicitConversionSequence TryObjectArgumentInitialization(clang::Sema&, clang::SourceLocation, clang::QualType, clang::Expr::Classification, clang::CXXMethodDecl*, const clang::CXXRecordDecl*, bool, clang::QualType, bool): Assertion `FromType->isRecordType()' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and dumped files.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -g -o /app/output.s -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -std=c++20
1. :12:17: current parser token ';'
#0 0x0000000004364be8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4364be8)
#1 0x0000000004361b04 llvm::sys::RunSignalHandlers() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4361b04)
#2 0x0000000004362124 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4362124)
#3 0x00000000042a0328 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#4 0x00007e169e245330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
#5 0x00007e169e29eb2c pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x9eb2c)
#6 0x00007e169e24527e raise (/lib/x86_64-linux-gnu/libc.so.6+0x4527e)
#7 0x00007e169e2288ff abort (/lib/x86_64-linux-gnu/libc.so.6+0x288ff)
#8 0x00007e169e22881b (/lib/x86_64-linux-gnu/libc.so.6+0x2881b)
#9 0x00007e169e23b517 (/lib/x86_64-linux-gnu/libc.so.6+0x3b517)
#10 0x000000000756f993 (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x756f993)
#11 0x000000000757cb86 clang::Sema::PerformImplicitObjectArgumentInitialization(clang::Expr*, clang::NestedNameSpecifier, clang::NamedDecl*, clang::CXXMethodDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x757cb86)
#12 0x000000000758a144 clang::Sema::BuildCallToMemberFunction(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef, clang::SourceLocation, clang::Expr*, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x758a144)
#13 0x00000000071ddeda clang::Sema::BuildCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef, clang::SourceLocation, clang::Expr*, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x71ddeda)
#14 0x00000000071e38ef clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef, clang::SourceLocation, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x71e38ef)
#15 0x0000000007252c06 clang::TreeTransform, llvm::PointerIntPairInfo>>*>)::ComplexRemove>::TransformCallExpr(clang::CallExpr*) SemaExpr.cpp:0:0
#16 0x00000000071b9396 clang::Sema::PopExpressionEvaluationContext() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x71b9396)
#17 0x0000000006c8916b clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c8916b)
#18 0x0000000006ca8ac2 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6ca8ac2)
#19 0x0000000006c543eb clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c543eb)
#20 0x0000000006c54bef clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c54bef)
#21 0x0000000006c61411 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c61411)
#22 0x0000000006c62325 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c62325)
#23 0x0000000006c3ff3a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c3ff3a)
#24 0x0000000004e535d8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e535d8)
#25 0x000000000517dc68 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x517dc68)
#26 0x0000000005109b6d clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x5109b6d)
#27 0x000000000527f19d clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x527f19d)
#28 0x0000000000db9c7c cc1_main(llvm::ArrayRef, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdb9c7c)
#29 0x0000000000db088a ExecuteCC1Tool(llvm::SmallVectorImpl&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr) driver.cpp:0:0
#30 0x0000000000db0a0d int llvm::function_ref&)>::callback_fn&)>(long, llvm::SmallVectorImpl&) driver.cpp:0:0
#31 0x0000000004ec6189 void llvm::function_ref::callback_fn>, std::__cxx11::basic_string, std::allocator>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#32 0x00000000042a0764 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42a0764)
#33 0x0000000004ec6cb5 clang::driver::CC1Command::Execute(llvm::ArrayRef>, std::__cxx11::basic_string, std::allocator>*, bool*) const (.part.0) Job.cpp:0:0
#34 0x0000000004e82242 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e82242)
#35 0x0000000004e8325e clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e8325e)
#36 0x0000000004e8f3c5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e8f3c5)
#37 0x0000000000db616a clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdb616a)
#38 0x0000000000ccb54a main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xccb54a)
#39 0x00007e169e22a1ca (/lib/x86_64-linux-gnu/libc.so.6+0x2a1ca)
#40 0x00007e169e22a28b __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28b)
#41 0x0000000000db0235 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdb0235)
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
Compiler returned: 134
```

Start with the C++ reproducer linked in the issue and inspect clang/lib/Sema/SemaOverload.cpp around TryObjectArgumentInitialization, where the assertion occurs. Re-run the reproducer with the reported C++20 command, then trace the member-call handling shown in the stack. Done means the reproducer no longer aborts on the assertion and has appropriate compiler behavior.

Written by the indexing model from the issue text.