Revert r13409 ("Make the array bounds check elimination phase optional (and set the foundation for …

src/mips/lithium-codegen-mips.cc

Index: src/mips/lithium-codegen-mips.cc
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index d52ee31b1c07148312cdc8d257605fe81db2f1dc..02ca14534a7512d21e5c3e2db9b5a241e5a45a99 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -481,6 +481,8 @@ bool LCodeGen::IsInteger32(LConstantOperand* op) const {
 
 int LCodeGen::ToInteger32(LConstantOperand* op) const {
   HConstant* constant = chunk_->LookupConstant(op);
+  ASSERT(chunk_->LookupLiteralRepresentation(op).IsInteger32());
+  ASSERT(constant->HasInteger32Value());
   return constant->Integer32Value();
 }