spirv-fuzz: Fix in operand type assertion (#3666)

spvtools::fuzz::MakeIdUseDescriptorFromUse asserts if the id use type is
SPV_OPERAND_TYPE_ID. The problem is that not all id types are covered by
this condition. The bug was found because the first operand of an OpControlBarrier
instruction has SPV_OPERAND_TYPE_SCOPE_ID as type. Therefore, to cover
all cases the spvIsInIdType function is used.

Fixes #3665.

source/fuzz/id_use_descriptor.cpp

@@ -52,7 +52,7 @@ protobufs::IdUseDescriptor MakeIdUseDescriptorFromUse(
     opt::IRContext* context, opt::Instruction* inst,
     uint32_t in_operand_index) {
   const auto& in_operand = inst->GetInOperand(in_operand_index);
-  assert(in_operand.type == SPV_OPERAND_TYPE_ID);
+  assert(spvIsInIdType(in_operand.type));
   return MakeIdUseDescriptor(in_operand.words[0],
                              MakeInstructionDescriptor(context, inst),
                              in_operand_index);