[strong] Disallow implicit conversions for comparison

src/ia32/full-codegen-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 977 matching lines @@
 
       __ cmp(edx, eax);
       __ j(not_equal, &next_test);
       __ Drop(1);  // Switch value is no longer needed.
       __ jmp(clause->body_target());
       __ bind(&slow_case);
     }
 
     // Record position before stub call for type feedback.
     SetSourcePosition(clause->position());
-    Handle<Code> ic =
-        CodeFactory::CompareIC(isolate(), Token::EQ_STRICT).code();
+    Handle<Code> ic = CodeFactory::CompareIC(isolate(), Token::EQ_STRICT,
+                                             language_mode()).code();
     CallIC(ic, clause->CompareId());
     patch_site.EmitPatchInfo();
 
     Label skip;
     __ jmp(&skip, Label::kNear);
     PrepareForBailout(clause, TOS_REG);
     __ cmp(eax, isolate()->factory()->true_value());
     __ j(not_equal, &next_test);
     __ Drop(1);
     __ jmp(clause->body_target());
@@ skipping 4143 matching lines @@
         __ mov(ecx, edx);
         __ or_(ecx, eax);
         patch_site.EmitJumpIfNotSmi(ecx, &slow_case, Label::kNear);
         __ cmp(edx, eax);
         Split(cc, if_true, if_false, NULL);
         __ bind(&slow_case);
       }
 
       // Record position and call the compare IC.
       SetSourcePosition(expr->position());
-      Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code();
+      Handle<Code> ic =
+          CodeFactory::CompareIC(isolate(), op, language_mode()).code();
       CallIC(ic, expr->CompareOperationFeedbackId());
       patch_site.EmitPatchInfo();
 
       PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
       __ test(eax, eax);
       Split(cc, if_true, if_false, fall_through);
     }
   }
 
   // Convert the result of the comparison into one expected for this
@@ skipping 198 matching lines @@
   DCHECK_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(),
             Assembler::target_address_at(call_target_address,
                                          unoptimized_code));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32