[strong] Disallow implicit conversions for comparison

src/arm64/full-codegen-arm64.cc

 // Copyright 2013 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_ARM64
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 1039 matching lines @@
       patch_site.EmitJumpIfEitherNotSmi(x0, x1, &slow_case);
       __ Cmp(x1, x0);
       __ B(ne, &next_test);
       __ Drop(1);  // Switch value is no longer needed.
       __ B(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;
     __ B(&skip);
     PrepareForBailout(clause, TOS_REG);
     __ JumpIfNotRoot(x0, Heap::kTrueValueRootIndex, &next_test);
     __ Drop(1);
     __ B(clause->body_target());
     __ Bind(&skip);
@@ skipping 3843 matching lines @@
       if (ShouldInlineSmiCase(op)) {
         Label slow_case;
         patch_site.EmitJumpIfEitherNotSmi(x0, x1, &slow_case);
         __ Cmp(x1, x0);
         Split(cond, 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);
       __ CompareAndSplit(x0, 0, cond, if_true, if_false, fall_through);
     }
   }
 
   // Convert the result of the comparison into one expected for this
   // expression's context.
   context()->Plug(if_true, if_false);
@@ skipping 544 matching lines @@
     }
   }
 
   return INTERRUPT;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64