[clang] [llvm] [SPIRV] Add support for the `SPV_EXT_long_vector` extension (PR #210279)

[Juan Manuel Martinez Caamaño via cfe-commits]

================
@@ -971,6 +971,11 @@ Register createVirtualRegister(
       MIRBuilder);
 }
 
+bool isVectorType(SPIRVTypeInst SPVTy) {
+  return SPVTy->getOpcode() == SPIRV::OpTypeVector ||
+      SPVTy->getOpcode() == SPIRV::OpTypeVectorIdEXT;
+}
----------------
jmmartinez wrote:

What if we added this as a member of `SPIRVTypeInst`

https://github.com/llvm/llvm-project/pull/210279