Direct call to eval passes strict mode through.

src/codegen-inl.h

Index: src/codegen-inl.h
diff --git a/src/codegen-inl.h b/src/codegen-inl.h
index 6534e7fd63fa441c7d16d0bb07d3c47b0c6eefdf..54677894cd208d0ca342eb50c66d550811805305 100644
--- a/src/codegen-inl.h
+++ b/src/codegen-inl.h
@@ -55,6 +55,10 @@ bool CodeGenerator::is_eval() { return info_->is_eval(); }
 
 Scope* CodeGenerator::scope() { return info_->function()->scope(); }
 
+StrictModeFlag CodeGenerator::strict_mode_flag() {
+  return info_->function()->strict_mode() ? kStrictMode : kNonStrictMode;
+}
+
 } }  // namespace v8::internal
 
 #endif  // V8_CODEGEN_INL_H_