Fix LiteralCompareTypeof breakage introduced in r15723

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index 43325dfb2ca12f7199bc716834dc0b6c232f8a1a..f4d02d236fff3139f5e24bc7739d0ac61d0973ae 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -4632,7 +4632,7 @@ void FullCodeGenerator::EmitLiteralCompareTypeof(Expression* expr,
                          &if_true, &if_false, &fall_through);
 
   { AccumulatorValueContext context(this);
-    VisitForTypeofValue(sub_expr);
+    VisitForTypeofValue(sub_expr->AsUnaryOperation()->expression());
   }
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);