[strong] Refactor ObjectStrength into a replacement for strong boolean args

src/compiler/ast-graph-builder.cc

Index: src/compiler/ast-graph-builder.cc
diff --git a/src/compiler/ast-graph-builder.cc b/src/compiler/ast-graph-builder.cc
index d1103d7c907b662d0092f98d9fcb80bde29ebdad..5900c7cecd9630e410d6aa3465c9bf7330c0b967 100644
--- a/src/compiler/ast-graph-builder.cc
+++ b/src/compiler/ast-graph-builder.cc
@@ -2547,16 +2547,16 @@ void AstGraphBuilder::VisitCompareOperation(CompareOperation* expr) {
       op = javascript()->StrictNotEqual();
       break;
     case Token::LT:
-      op = javascript()->LessThan(language_mode());
+      op = javascript()->LessThan(strength(language_mode()));
       break;
     case Token::GT:
-      op = javascript()->GreaterThan(language_mode());
+      op = javascript()->GreaterThan(strength(language_mode()));
       break;
     case Token::LTE:
-      op = javascript()->LessThanOrEqual(language_mode());
+      op = javascript()->LessThanOrEqual(strength(language_mode()));
       break;
     case Token::GTE:
-      op = javascript()->GreaterThanOrEqual(language_mode());
+      op = javascript()->GreaterThanOrEqual(strength(language_mode()));
       break;
     case Token::INSTANCEOF:
       op = javascript()->InstanceOf();
@@ -3414,39 +3414,40 @@ Node* AstGraphBuilder::BuildThrow(Node* exception_value) {
 
 Node* AstGraphBuilder::BuildBinaryOp(Node* left, Node* right, Token::Value op) {
   const Operator* js_op;
+  Strength op_strength = strength(language_mode());
   switch (op) {
     case Token::BIT_OR:
-      js_op = javascript()->BitwiseOr(language_mode());
+      js_op = javascript()->BitwiseOr(op_strength);
       break;
     case Token::BIT_AND:
-      js_op = javascript()->BitwiseAnd(language_mode());
+      js_op = javascript()->BitwiseAnd(op_strength);
       break;
     case Token::BIT_XOR:
-      js_op = javascript()->BitwiseXor(language_mode());
+      js_op = javascript()->BitwiseXor(op_strength);
       break;
     case Token::SHL:
-      js_op = javascript()->ShiftLeft(language_mode());
+      js_op = javascript()->ShiftLeft(op_strength);
       break;
     case Token::SAR:
-      js_op = javascript()->ShiftRight(language_mode());
+      js_op = javascript()->ShiftRight(op_strength);
       break;
     case Token::SHR:
-      js_op = javascript()->ShiftRightLogical(language_mode());
+      js_op = javascript()->ShiftRightLogical(op_strength);
       break;
     case Token::ADD:
-      js_op = javascript()->Add(language_mode());
+      js_op = javascript()->Add(op_strength);
       break;
     case Token::SUB:
-      js_op = javascript()->Subtract(language_mode());
+      js_op = javascript()->Subtract(op_strength);
       break;
     case Token::MUL:
-      js_op = javascript()->Multiply(language_mode());
+      js_op = javascript()->Multiply(op_strength);
       break;
     case Token::DIV:
-      js_op = javascript()->Divide(language_mode());
+      js_op = javascript()->Divide(op_strength);
       break;
     case Token::MOD:
-      js_op = javascript()->Modulus(language_mode());
+      js_op = javascript()->Modulus(op_strength);
       break;
     default:
       UNREACHABLE();