[clang] [clang][ExprConst] Add missing `FastEvaluateAsRValue` in `EvaluateKnownConstInt{,CheckOverflow}` (PR #234552)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-aarch64-ubuntu` running on `arm-bbot-lldb-aarch64-ubuntu` while building `clang` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/59/builds/39370

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

```
Step 6 (test) failure: build (failure)
...
PASS: lldb-api :: functionalities/scripted_frame_provider/step_with_type/TestFrameProviderStepping.py (708 of 2739)
PASS: lldb-api :: functionalities/scripting_extension_generate/TestScriptingExtensionGenerate.py (709 of 2739)
UNSUPPORTED: lldb-api :: functionalities/set-data/TestSetData.py (710 of 2739)
SKIPPED: lldb-api :: functionalities/ptrauth_diagnostics/ptrauth_blend/TestPtrauthBlendInterp.py (711 of 2739)
PASS: lldb-api :: functionalities/recursion/TestValueObjectRecursion.py (712 of 2739)
PASS: lldb-api :: functionalities/show_location/TestShowLocationDwarf5.py (713 of 2739)
PASS: lldb-api :: functionalities/signal/TestSendSignal.py (714 of 2739)
PASS: lldb-api :: functionalities/scripted_frame_provider/wrapped_frame_register_context/TestFrameProviderWrappedFrameRegisterContext.py (715 of 2739)
PASS: lldb-api :: functionalities/scripted_process/TestScriptedProcess.py (716 of 2739)
PASS: lldb-api :: functionalities/gdb_remote_client/TestArmRegisterDefinition.py (717 of 2739)
FAIL: lldb-api :: functionalities/gdb_remote_client/TestAttachWaitConnected.py (718 of 2739)
******************** TEST 'lldb-api :: functionalities/gdb_remote_client/TestAttachWaitConnected.py' FAILED ********************
Script:
--
/usr/bin/python3.12 /home/buildbot/workspace/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=/home/buildbot/workspace/lldb-aarch64-ubuntu/build/./lib --env LLVM_INCLUDE_DIR=/home/buildbot/workspace/lldb-aarch64-ubuntu/build/include --env LLVM_TOOLS_DIR=/home/buildbot/workspace/lldb-aarch64-ubuntu/build/./bin --triple aarch64-unknown-linux-gnu --build-dir /home/buildbot/workspace/lldb-aarch64-ubuntu/build/lldb-test-build --lldb-module-cache-dir /home/buildbot/workspace/lldb-aarch64-ubuntu/build/lldb-test-build/module-cache-lldb/lldb-api --clang-module-cache-dir /home/buildbot/workspace/lldb-aarch64-ubuntu/build/lldb-test-build/module-cache-clang/lldb-api --executable /home/buildbot/workspace/lldb-aarch64-ubuntu/build/./bin/lldb --lldb-python-dir /home/buildbot/workspace/lldb-aarch64-ubuntu/build/local/lib/python3.12/dist-packages --compiler /home/buildbot/workspace/lldb-aarch64-ubuntu/build/./bin/clang --dsymutil /home/buildbot/workspace/lldb-aarch64-ubuntu/build/./bin/dsymutil --make /usr/bin/gmake --llvm-tools-dir /home/buildbot/workspace/lldb-aarch64-ubuntu/build/./bin --lldb-obj-root /home/buildbot/workspace/lldb-aarch64-ubuntu/build/tools/lldb --lldb-libs-dir /home/buildbot/workspace/lldb-aarch64-ubuntu/build/./lib --cmake-build-type Release /home/buildbot/workspace/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/functionalities/gdb_remote_client -p TestAttachWaitConnected.py --timeout 600
--
Exit Code: 1

Command Output (stdout):
--
Skipping the following test categories: libc++, msvcstl, dsym, pdb, gmodules, debugserver, objc

--
Command Output (stderr):
--
FAIL: LLDB (/home/buildbot/workspace/lldb-aarch64-ubuntu/build/bin/clang-aarch64) :: test_interrupt_wait_for_attach (TestAttachWaitConnected.TestAttachWaitConnected.test_interrupt_wait_for_attach)
Log Files:
 - /home/buildbot/workspace/lldb-aarch64-ubuntu/build/lldb-test-build/functionalities/gdb_remote_client/TestAttachWaitConnected/Failure_test_interrupt_wait_for_attach.log
======================================================================
FAIL: test_interrupt_wait_for_attach (TestAttachWaitConnected.TestAttachWaitConnected.test_interrupt_wait_for_attach)
   An interrupt ends a wait-for attach on a process that was connected
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/buildbot/workspace/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/functionalities/gdb_remote_client/TestAttachWaitConnected.py", line 87, in test_interrupt_wait_for_attach
    self.fail("interrupt did not end the attach")
AssertionError: interrupt did not end the attach
Config=aarch64-/home/buildbot/workspace/lldb-aarch64-ubuntu/build/bin/clang
----------------------------------------------------------------------
Ran 1 test in 30.020s

FAILED (failures=1)

--

********************
PASS: lldb-api :: functionalities/signal/handle-abrt/TestHandleAbort.py (719 of 2739)
PASS: lldb-api :: functionalities/signal/handle-segv/TestHandleSegv.py (720 of 2739)
PASS: lldb-api :: functionalities/source-map/TestTargetSourceMap.py (721 of 2739)
PASS: lldb-api :: functionalities/stats_api/TestStatisticsAPI.py (722 of 2739)

```

</details>

https://github.com/llvm/llvm-project/pull/234552