[clang] [clang][index][USR] GenLoc prints file entry at most once, allow repeated offsets (PR #205430)

[via cfe-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

* 88352 tests passed
* 1680 tests skipped
* 1 test failed

## Failed Tests
(click on a test name to see its output)

### Clang
<details>
<summary>Clang.Analysis/Scalable/PointerFlow/entity-name-no-conflict.cpp</summary>

```
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 2
rm -rf /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Analysis/Scalable/PointerFlow/Output/entity-name-no-conflict.cpp.tmp && mkdir -p /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Analysis/Scalable/PointerFlow/Output/entity-name-no-conflict.cpp.tmp
# executed command: rm -rf /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Analysis/Scalable/PointerFlow/Output/entity-name-no-conflict.cpp.tmp
# note: command had no output on stdout or stderr
# executed command: mkdir -p /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Analysis/Scalable/PointerFlow/Output/entity-name-no-conflict.cpp.tmp
# note: command had no output on stdout or stderr
# RUN: at line 3
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang -cc1 -internal-isystem /home/gha/actions-runner/_work/llvm-project/llvm-project/build/lib/clang/23/include -nostdsysteminc -fsyntax-only -std=c++20 /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Analysis/Scalable/PointerFlow/entity-name-no-conflict.cpp    --ssaf-extract-summaries=PointerFlow    --ssaf-tu-summary-file=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Analysis/Scalable/PointerFlow/Output/entity-name-no-conflict.cpp.tmp/tu.summary.json    --ssaf-compilation-unit-id="tu-1"    -mllvm -debug-only=ssaf-analyses 2>&1 | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Analysis/Scalable/PointerFlow/entity-name-no-conflict.cpp
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang -cc1 -internal-isystem /home/gha/actions-runner/_work/llvm-project/llvm-project/build/lib/clang/23/include -nostdsysteminc -fsyntax-only -std=c++20 /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Analysis/Scalable/PointerFlow/entity-name-no-conflict.cpp --ssaf-extract-summaries=PointerFlow --ssaf-tu-summary-file=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Analysis/Scalable/PointerFlow/Output/entity-name-no-conflict.cpp.tmp/tu.summary.json --ssaf-compilation-unit-id=tu-1 -mllvm -debug-only=ssaf-analyses
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Analysis/Scalable/PointerFlow/entity-name-no-conflict.cpp
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Analysis/Scalable/PointerFlow/entity-name-no-conflict.cpp
# `-----------------------------
# error: command failed with exit status: 2

--

```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/205430