winch: Add support for <i32|i64>.rem_* WebAssembly instructions (#5823)

This commit adds support for i32 and i64 remainder instructions for
x64.

winch/codegen/src/isa/aarch64/masm.rs

@@ -7,7 +7,7 @@ use crate::{
     abi::local::LocalSlot,
     codegen::CodeGenContext,
     isa::reg::Reg,
-    masm::{DivKind, MacroAssembler as Masm, OperandSize, RegImm},
+    masm::{DivKind, MacroAssembler as Masm, OperandSize, RegImm, RemKind},
 };
 use cranelift_codegen::{settings, Final, MachBufferFinalized};
 
@@ -156,6 +156,10 @@ impl Masm for MacroAssembler {
         todo!()
     }
 
+    fn rem(&mut self, _context: &mut CodeGenContext, _kind: RemKind, _size: OperandSize) {
+        todo!()
+    }
+
     fn zero(&mut self, reg: Reg) {
         self.asm.load_constant(0, reg);
     }