message: Add comment for call argument list preprocessing.
diff: @@ -6885,6 +6885,10 @@ impl FunctionCodeGenerator<CodegenError> for X64FunctionCode {
  self.machine.release_locations_only_osr_state(params.len());
  + // Pop arguments off the FP stack and canonicalize them if needed.
  + //
  + // Canonicalization state will be lost across function calls, so early canonicalization
  + // is necessary here.
  while let Some(fp) = self.fp_stack.last() {
  if fp.depth >= self.value_stack.len() {
  let index = fp.depth - self.value_stack.len();
  @@ -6956,6 +6960,10 @@ impl FunctionCodeGenerator<CodegenError> for X64FunctionCode {
  .collect();
  self.machine.release_locations_only_regs(&params);
  + // Pop arguments off the FP stack and canonicalize them if needed.
  + //
  + // Canonicalization state will be lost across function calls, so early canonicalization
  + // is necessary here.
  while let Some(fp) = self.fp_stack.last() {
  if fp.depth >= self.value_stack.len() {
  let index = fp.depth - self.value_stack.len();
  