Direct call to eval passes strict mode through.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index db9e2ef7b10f95e01cfce86773eed94bd6a6ce32..a729db49b8863c10a79b429fc607054b53430ee2 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -2984,6 +2984,18 @@ void SharedFunctionInfo::set_optimization_disabled(bool disable) {
 }
 
 
+bool SharedFunctionInfo::strict_mode() {
+  return BooleanBit::get(compiler_hints(), kStrictModeFunction);
+}
+
+
+void SharedFunctionInfo::set_strict_mode(bool value) {
+  set_compiler_hints(BooleanBit::set(compiler_hints(),
+                                     kStrictModeFunction,
+                                     value));
+}
+
+
 ACCESSORS(CodeCache, default_cache, FixedArray, kDefaultCacheOffset)
 ACCESSORS(CodeCache, normal_type_cache, Object, kNormalTypeCacheOffset)