[lldb] [llvm] [dsymutil] Avoid copying binary swiftmodules built from textual (PR #134719)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `polly-x86_64-linux-shared` running on `polly-x86_64-gce2` while building `lldb,llvm` at step 5 "build".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/97/builds/5912

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (build) failure: 'ninja' (failure)
...
[3828/4371] Building Options.inc...
[3829/4371] Building CXX object tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/llvm-dwarfdump.cpp.o
[3830/4371] Linking CXX executable bin/llvm-dwarfdump
[3831/4371] Building CXX object tools/llvm-dwarfutil/CMakeFiles/llvm-dwarfutil.dir/DebugInfoLinker.cpp.o
[3832/4371] Building CXX object tools/llvm-dwarfutil/CMakeFiles/llvm-dwarfutil.dir/llvm-dwarfutil.cpp.o
[3833/4371] Building CXX object tools/llvm-dwp/CMakeFiles/llvm-dwp.dir/llvm-dwp-driver.cpp.o
[3834/4371] Building CXX object tools/dsymutil/CMakeFiles/dsymutil.dir/DwarfLinkerForBinary.cpp.o
[3835/4371] Building CXX object tools/llvm-dwp/CMakeFiles/llvm-dwp.dir/llvm-dwp.cpp.o
[3836/4371] Linking CXX executable bin/llvm-dwarfutil
[3837/4371] Linking CXX executable bin/dsymutil
FAILED: bin/dsymutil 
: && /usr/bin/c++ -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -fuse-ld=lld -Wl,--color-diagnostics     -Wl,--gc-sections tools/dsymutil/CMakeFiles/dsymutil.dir/dsymutil.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/BinaryHolder.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/CFBundle.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/DebugMap.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/DwarfLinkerForBinary.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/MachODebugMapParser.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/MachOUtils.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/Reproducer.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/RelocationMap.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/SwiftModule.cpp.o tools/dsymutil/CMakeFiles/dsymutil.dir/dsymutil-driver.cpp.o -o bin/dsymutil  -Wl,-rpath,"\$ORIGIN/../lib:/home/worker/buildbot-workers/polly-x86_64-gce2/rundir/llvm.obj/lib:"  lib/libLLVMX86CodeGen.so.21.0git  lib/libLLVMNVPTXCodeGen.so.21.0git  lib/libLLVMX86Desc.so.21.0git  lib/libLLVMNVPTXDesc.so.21.0git  lib/libLLVMX86Info.so.21.0git  lib/libLLVMNVPTXInfo.so.21.0git  lib/libLLVMDWARFLinkerClassic.so.21.0git  lib/libLLVMDWARFLinkerParallel.so.21.0git  lib/libLLVMOption.so.21.0git  lib/libLLVMAsmPrinter.so.21.0git  lib/libLLVMDWARFLinker.so.21.0git  lib/libLLVMCodeGen.so.21.0git  lib/libLLVMCodeGenTypes.so.21.0git  lib/libLLVMTarget.so.21.0git  lib/libLLVMDebugInfoDWARF.so.21.0git  lib/libLLVMObject.so.21.0git  lib/libLLVMMC.so.21.0git  lib/libLLVMRemarks.so.21.0git  lib/libLLVMTargetParser.so.21.0git  lib/libLLVMSupport.so.21.0git  -Wl,-rpath-link,/home/worker/buildbot-workers/polly-x86_64-gce2/rundir/llvm.obj/lib && :
ld.lld: error: undefined symbol: llvm::BitstreamCursor::ReadAbbrevRecord()
>>> referenced by SwiftModule.cpp
>>>               tools/dsymutil/CMakeFiles/dsymutil.dir/SwiftModule.cpp.o:(llvm::BitstreamCursor::advance(unsigned int))

ld.lld: error: undefined symbol: llvm::BitstreamCursor::EnterSubBlock(unsigned int, unsigned int*)
>>> referenced by SwiftModule.cpp
>>>               tools/dsymutil/CMakeFiles/dsymutil.dir/SwiftModule.cpp.o:((anonymous namespace)::enterTopLevelModuleBlock(llvm::BitstreamCursor&, unsigned int) (.constprop.0))
>>> referenced by SwiftModule.cpp
>>>               tools/dsymutil/CMakeFiles/dsymutil.dir/SwiftModule.cpp.o:(IsBuiltFromSwiftInterface(llvm::StringRef))
>>> referenced by SwiftModule.cpp
>>>               tools/dsymutil/CMakeFiles/dsymutil.dir/SwiftModule.cpp.o:(IsBuiltFromSwiftInterface(llvm::StringRef))

ld.lld: error: undefined symbol: llvm::BitstreamCursor::readRecord(unsigned int, llvm::SmallVectorImpl<unsigned long>&, llvm::StringRef*)
>>> referenced by SwiftModule.cpp
>>>               tools/dsymutil/CMakeFiles/dsymutil.dir/SwiftModule.cpp.o:(IsBuiltFromSwiftInterface(llvm::StringRef))
>>> referenced by SwiftModule.cpp
>>>               tools/dsymutil/CMakeFiles/dsymutil.dir/SwiftModule.cpp.o:(IsBuiltFromSwiftInterface(llvm::StringRef))
collect2: error: ld returned 1 exit status
[3838/4371] Linking CXX executable bin/llvm-dwp
[3839/4371] Building CXX object tools/llvm-exegesis/CMakeFiles/llvm-exegesis.dir/llvm-exegesis.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/134719