[clang] [clang][bytecode] Fix wrong function call in test case (PR #176085)

[via cfe-commits]

github-actions[bot] wrote:

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

* 85442 tests passed
* 1206 tests skipped
* 1 test failed

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

### Clang
<details>
<summary>Clang.AST/ByteCode/c.c</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/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 -triple x86_64-linux -verify=expected,all                   -std=c11 -Wcast-qual           /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/AST/ByteCode/c.c -fexperimental-new-constant-interpreter
# 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 -triple x86_64-linux -verify=expected,all -std=c11 -Wcast-qual /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/AST/ByteCode/c.c -fexperimental-new-constant-interpreter
# .---command stderr------------
# | error: diagnostics with 'warning' severity seen but not expected: 
# |   File /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/AST/ByteCode/c.c Line 418: passing arguments to 'returnsComplex' without a prototype is deprecated in all versions of C and is not supported in C23
# | 1 error generated.
# `-----------------------------
# error: command failed with exit status: 1

--

```
</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/176085