[clang] [clang-format] Allow decltype in requires clause (PR #78847)

[Emilia Kond via cfe-commits]

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@@ -1071,6 +1071,16 @@ TEST_F(TokenAnnotatorTest, UnderstandsRequiresClausesAndConcepts) {
                     "concept C = (!Foo<T>) && Bar;");
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rymiel wrote:

So, GitHub won't actually let me leave a comment on the line I want to actually talk about, but I noticed a few lines above this, on line 1066, it uses `EXPECT_EQ` instead of `ASSERT_EQ`, which is my mistake from 4 months ago.
But then I noticed a lot of these mistakes elsewhere in the file.
This is unrelated to this patch here, but do any of you have any opinions on unifying these? As I understand the assert exists to avoid out-of-bound accesses and thus segmentation faults. Is anyone opposed to an NFC commit changing all the EXPECTs into ASSERTs? @llvm/pr-subscribers-clang-format 

https://github.com/llvm/llvm-project/pull/78847