YJIT: Trivial fixes in codegen.rs

yjit/src/codegen.rs

@@ -2011,7 +2011,7 @@ fn gen_get_ivar(
         }
     };
 
-    // Guard heap object (recv_opnd must be used before stack_oop)
+    // Guard heap object (recv_opnd must be used before stack_pop)
     guard_object_is_heap(ctx, asm, recv, recv_opnd, side_exit);
 
     // Pop receiver if it's on the temp stack

yjit/src/core.rs

@@ -1505,7 +1505,7 @@ impl Context {
 
     pub fn two_fixnums_on_stack(&self, jit: &mut JITState) -> Option<bool> {
         if jit.at_current_insn() {
-            let comptime_recv = jit.peek_at_stack( self, 1);
+            let comptime_recv = jit.peek_at_stack(self, 1);
             let comptime_arg = jit.peek_at_stack(self, 0);
             return Some(comptime_recv.fixnum_p() && comptime_arg.fixnum_p());
         }