[stubs] Introduce a proper ToBooleanStub.

src/crankshaft/arm/lithium-codegen-arm.cc

Index: src/crankshaft/arm/lithium-codegen-arm.cc
diff --git a/src/crankshaft/arm/lithium-codegen-arm.cc b/src/crankshaft/arm/lithium-codegen-arm.cc
index 4634fcc9d42c3d16b02221a30b1c8439d4aaae4a..568efe83aeadb1f201bde1ae9dc6aea0f6f173ff 100644
--- a/src/crankshaft/arm/lithium-codegen-arm.cc
+++ b/src/crankshaft/arm/lithium-codegen-arm.cc
@@ -2070,29 +2070,30 @@ void LCodeGen::DoBranch(LBranch* instr) {
       __ cmp(ip, Operand::Zero());
       EmitBranch(instr, ne);
     } else {
-      ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types();
+      ToBooleanICStub::Types expected =
+          instr->hydrogen()->expected_input_types();
       // Avoid deopts in the case where we've never executed this path before.
-      if (expected.IsEmpty()) expected = ToBooleanStub::Types::Generic();
+      if (expected.IsEmpty()) expected = ToBooleanICStub::Types::Generic();
 
-      if (expected.Contains(ToBooleanStub::UNDEFINED)) {
+      if (expected.Contains(ToBooleanICStub::UNDEFINED)) {
         // undefined -> false.
         __ CompareRoot(reg, Heap::kUndefinedValueRootIndex);
         __ b(eq, instr->FalseLabel(chunk_));
       }
-      if (expected.Contains(ToBooleanStub::BOOLEAN)) {
+      if (expected.Contains(ToBooleanICStub::BOOLEAN)) {
         // Boolean -> its value.
         __ CompareRoot(reg, Heap::kTrueValueRootIndex);
         __ b(eq, instr->TrueLabel(chunk_));
         __ CompareRoot(reg, Heap::kFalseValueRootIndex);
         __ b(eq, instr->FalseLabel(chunk_));
       }
-      if (expected.Contains(ToBooleanStub::NULL_TYPE)) {
+      if (expected.Contains(ToBooleanICStub::NULL_TYPE)) {
         // 'null' -> false.
         __ CompareRoot(reg, Heap::kNullValueRootIndex);
         __ b(eq, instr->FalseLabel(chunk_));
       }
 
-      if (expected.Contains(ToBooleanStub::SMI)) {
+      if (expected.Contains(ToBooleanICStub::SMI)) {
         // Smis: 0 -> false, all other -> true.
         __ cmp(reg, Operand::Zero());
         __ b(eq, instr->FalseLabel(chunk_));
@@ -2115,13 +2116,13 @@ void LCodeGen::DoBranch(LBranch* instr) {
         }
       }
 
-      if (expected.Contains(ToBooleanStub::SPEC_OBJECT)) {
+      if (expected.Contains(ToBooleanICStub::SPEC_OBJECT)) {
         // spec object -> true.
         __ CompareInstanceType(map, ip, FIRST_JS_RECEIVER_TYPE);
         __ b(ge, instr->TrueLabel(chunk_));
       }
 
-      if (expected.Contains(ToBooleanStub::STRING)) {
+      if (expected.Contains(ToBooleanICStub::STRING)) {
         // String value -> false iff empty.
         Label not_string;
         __ CompareInstanceType(map, ip, FIRST_NONSTRING_TYPE);
@@ -2133,19 +2134,19 @@ void LCodeGen::DoBranch(LBranch* instr) {
         __ bind(&not_string);
       }
 
-      if (expected.Contains(ToBooleanStub::SYMBOL)) {
+      if (expected.Contains(ToBooleanICStub::SYMBOL)) {
         // Symbol value -> true.
         __ CompareInstanceType(map, ip, SYMBOL_TYPE);
         __ b(eq, instr->TrueLabel(chunk_));
       }
 
-      if (expected.Contains(ToBooleanStub::SIMD_VALUE)) {
+      if (expected.Contains(ToBooleanICStub::SIMD_VALUE)) {
         // SIMD value -> true.
         __ CompareInstanceType(map, ip, SIMD128_VALUE_TYPE);
         __ b(eq, instr->TrueLabel(chunk_));
       }
 
-      if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) {
+      if (expected.Contains(ToBooleanICStub::HEAP_NUMBER)) {
         // heap number -> false iff +0, -0, or NaN.
         DwVfpRegister dbl_scratch = double_scratch0();
         Label not_heap_number;