[cleanup] Replace ToBooleanICStub::Types with ToBooleanHints

src/crankshaft/hydrogen-instructions.cc

Index: src/crankshaft/hydrogen-instructions.cc
diff --git a/src/crankshaft/hydrogen-instructions.cc b/src/crankshaft/hydrogen-instructions.cc
index 465a18ae46e6145d08cb35d5156306cc3ab378d3..6c8d3131233fd0a8e2e584463b024610f0f1639b 100644
--- a/src/crankshaft/hydrogen-instructions.cc
+++ b/src/crankshaft/hydrogen-instructions.cc
@@ -7,6 +7,7 @@
 #include "src/base/bits.h"
 #include "src/base/ieee754.h"
 #include "src/base/safe_math.h"
+#include "src/codegen.h"
 #include "src/crankshaft/hydrogen-infer-representation.h"
 #include "src/double.h"
 #include "src/elements.h"
@@ -44,6 +45,21 @@ namespace internal {
 HYDROGEN_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE)
 #undef DEFINE_COMPILE
 
+Representation RepresentationFromMachineType(MachineType type) {
+  if (type == MachineType::Int32()) {
+    return Representation::Integer32();
+  }
+
+  if (type == MachineType::TaggedSigned()) {
+    return Representation::Smi();
+  }
+
+  if (type == MachineType::Pointer()) {
+    return Representation::External();
+  }
+
+  return Representation::Tagged();
+}
 
 Isolate* HValue::isolate() const {
   DCHECK(block() != NULL);
@@ -1056,23 +1072,21 @@ std::ostream& HReturn::PrintDataTo(std::ostream& os) const {  // NOLINT
 
 
 Representation HBranch::observed_input_representation(int index) {
-  if (expected_input_types_.Contains(ToBooleanICStub::NULL_TYPE) ||
-      expected_input_types_.Contains(ToBooleanICStub::SPEC_OBJECT) ||
-      expected_input_types_.Contains(ToBooleanICStub::STRING) ||
-      expected_input_types_.Contains(ToBooleanICStub::SYMBOL) ||
-      expected_input_types_.Contains(ToBooleanICStub::SIMD_VALUE)) {
+  if (expected_input_types_ & (ToBooleanHint::kNull | ToBooleanHint::kReceiver |
+                               ToBooleanHint::kString | ToBooleanHint::kSymbol |
+                               ToBooleanHint::kSimdValue)) {
     return Representation::Tagged();
   }
-  if (expected_input_types_.Contains(ToBooleanICStub::UNDEFINED)) {
-    if (expected_input_types_.Contains(ToBooleanICStub::HEAP_NUMBER)) {
+  if (expected_input_types_ & ToBooleanHint::kUndefined) {
+    if (expected_input_types_ & ToBooleanHint::kHeapNumber) {
       return Representation::Double();
     }
     return Representation::Tagged();
   }
-  if (expected_input_types_.Contains(ToBooleanICStub::HEAP_NUMBER)) {
+  if (expected_input_types_ & ToBooleanHint::kHeapNumber) {
     return Representation::Double();
   }
-  if (expected_input_types_.Contains(ToBooleanICStub::SMI)) {
+  if (expected_input_types_ & ToBooleanHint::kSmallInteger) {
     return Representation::Smi();
   }
   return Representation::None();