[llvm] [MC][RISCV] Add assembly syntax highlighting for RISCV (PR #65853)

[Jessica Clarke via llvm-commits]

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@@ -256,6 +258,7 @@ void RISCVInstPrinter::printSpimm(const MCInst *MI, unsigned OpNo,
   if (Opcode == RISCV::CM_PUSH)
     Spimm = -Spimm;
 
+  auto OS = markup(O, Markup::Immediate);
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jrtc27 wrote:

Unused

https://github.com/llvm/llvm-project/pull/65853