[clang] Recommit "[Clang][RISCV] Introduce tuple types for RVV bfloat16 #72216" (PR #72370)

[Yueh-Ting Chen via cfe-commits]

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@@ -1101,7 +1101,7 @@ enum PredefinedTypeIDs {
 ///
 /// Type IDs for non-predefined types will start at
 /// NUM_PREDEF_TYPE_IDs.
-const unsigned NUM_PREDEF_TYPE_IDS = 500;
+const unsigned NUM_PREDEF_TYPE_IDS = 502;
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eopXD wrote:

I extended `NUM_PREDEF_TYPE_IDS` to the least required, and left a note inside the test case to let future developers be aware that the test case it intertwine with the constant.

https://github.com/llvm/llvm-project/pull/72370