syntax_data: {"ast_node_type":"other","tokens":[{"end":36,"kind":"keyword","start":0,"text":"LLVMAtomicRMWBinOpUDecWrap"}]}
source_snippet:     LLVMAtomicRMWBinOpUDecWrap = 16,
context_before:     LLVMAtomicRMWBinOpUIncWrap = 15,
context_after:     /// Subtracts the value only if no unsigned overflow.