Remove CompilationInfo::MayUseThis() and replace it with what we really want to know: MustReplaceUn…

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 35ff38d6d5456785c0ae653507707d44dc055679..bf8fdbed891ddf87449abf8a8a6e08bb3edc34e0 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -141,8 +141,7 @@ bool LCodeGen::GeneratePrologue() {
     // Sloppy mode functions and builtins need to replace the receiver with the
     // global proxy when called as functions (without an explicit receiver
     // object).
-    if (is_sloppy(info()->language_mode()) && info()->MayUseThis() &&
-        !info()->is_native() && info()->scope()->has_this_declaration()) {
+    if (info()->MustReplaceUndefinedReceiverWithGlobalProxy()) {
       Label ok;
       int receiver_offset = info_->scope()->num_parameters() * kPointerSize;
       __ LoadRoot(at, Heap::kUndefinedValueRootIndex);