Fix load of potentially eval-shadowed let bindings.

test/mjsunit/harmony/block-let-semantics.js

Index: test/mjsunit/harmony/block-let-semantics.js
diff --git a/test/mjsunit/harmony/block-let-semantics.js b/test/mjsunit/harmony/block-let-semantics.js
index 198c3b4fb96803b415fdc65e0c69d3573eb23465..3819a9c6ec52f0035f3eeab95b0d084d004d40d5 100644
--- a/test/mjsunit/harmony/block-let-semantics.js
+++ b/test/mjsunit/harmony/block-let-semantics.js
@@ -81,13 +81,20 @@ TestAll('f()(); let x; function f() { return function() { x += 1; } }');
 TestAll('f()(); let x; function f() { return function() { ++x; } }');
 TestAll('f()(); let x; function f() { return function() { x++; } }');
 
-// Use in before initialization with a dynamic lookup.
+// Use before initialization with a dynamic lookup.
 TestAll('eval("x + 1;"); let x;');
 TestAll('eval("x = 1;"); let x;');
 TestAll('eval("x += 1;"); let x;');
 TestAll('eval("++x;"); let x;');
 TestAll('eval("x++;"); let x;');
 
+// Use before initialization with check for eval-shadowed bindings.
+TestAll('function f() { eval("var y = 2;"); x + 1; }; f(); let x;');
+TestAll('function f() { eval("var y = 2;"); x = 1; }; f(); let x;');
+TestAll('function f() { eval("var y = 2;"); x += 1; }; f(); let x;');
+TestAll('function f() { eval("var y = 2;"); ++x; }; f(); let x;');
+TestAll('function f() { eval("var y = 2;"); x++; }; f(); let x;');
+
 // Test that variables introduced by function declarations are created and
 // initialized upon entering a function / block scope.
 function f() {
@@ -136,3 +143,19 @@ function f2() {
   }
   assertEquals(5, n());
 }
+
+// Test that resolution of let bound variables works with scopes that call eval.
+function outer() {
+  function middle() {
+    function inner() {
+      return x;
+    }
+    eval("1 + 1");
+    return x + inner();
+  }
+
+  let x = 1;
+  return middle();
+}
+
+assertEquals(2, outer());