[clang] [clang][ASTImporter] Remove type from ImportedTypes cache on Decl import failure (PR #214008)

[via cfe-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Windows-->
# :window: Windows x64 Test Results

* 56039 tests passed
* 1489 tests skipped
* 4 tests failed

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

### Clang-Unit
<details>
<summary>Clang-Unit._/AllClangUnitTests_exe/ParameterizedTests/ErrorHandlingTest/ImportedTypeMappingIsInvalidatedOnFailure/0</summary>

```
Script:
--
C:\_work\llvm-project\llvm-project\build\tools\clang\unittests\.\AllClangUnitTests.exe --gtest_filter=ParameterizedTests/ErrorHandlingTest.ImportedTypeMappingIsInvalidatedOnFailure/0
--
unknown file
SEH exception with code 0x3221225501 thrown in the test body.
Stack trace:



```
</details>
<details>
<summary>Clang-Unit._/AllClangUnitTests_exe/ParameterizedTests/ErrorHandlingTest/ImportedTypeMappingIsInvalidatedOnFailure/1</summary>

```
Script:
--
C:\_work\llvm-project\llvm-project\build\tools\clang\unittests\.\AllClangUnitTests.exe --gtest_filter=ParameterizedTests/ErrorHandlingTest.ImportedTypeMappingIsInvalidatedOnFailure/1
--
unknown file
SEH exception with code 0x3221225501 thrown in the test body.
Stack trace:



```
</details>
<details>
<summary>Clang-Unit._/AllClangUnitTests_exe/ParameterizedTests/ErrorHandlingTest/ImportedTypeMappingIsInvalidatedOnFailure/2</summary>

```
Script:
--
C:\_work\llvm-project\llvm-project\build\tools\clang\unittests\.\AllClangUnitTests.exe --gtest_filter=ParameterizedTests/ErrorHandlingTest.ImportedTypeMappingIsInvalidatedOnFailure/2
--
unknown file
SEH exception with code 0x3221225501 thrown in the test body.
Stack trace:



```
</details>
<details>
<summary>Clang-Unit._/AllClangUnitTests_exe/ParameterizedTests/ErrorHandlingTest/ImportedTypeMappingIsInvalidatedOnFailure/3</summary>

```
Script:
--
C:\_work\llvm-project\llvm-project\build\tools\clang\unittests\.\AllClangUnitTests.exe --gtest_filter=ParameterizedTests/ErrorHandlingTest.ImportedTypeMappingIsInvalidatedOnFailure/3
--
unknown file
SEH exception with code 0x3221225501 thrown in the test body.
Stack trace:



```
</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/214008