Experimental: merge from bleeding edge 1298:1307. Port the eval...

test/mjsunit/global-load-from-eval-in-with.js

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 //     * Redistributions of source code must retain the above copyright
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@@ skipping 39 matching lines @@
 
 // Test shadowing in local scope inside an eval scope with eval calls in the eval scopes.
 test({ x: 42 }, "function f() { eval('1'); assertEquals(42, x) }; f();");
 test({ y: 42 }, "function f() { eval('1'); assertEquals(27, x) }; f();");
 
 // Test shadowing in local scope inside an eval scope with eval calls
 // in the eval scopes.  Deeper nesting this time.
 test({ x: 42 }, "function f() { function g() { eval('1'); assertEquals(42, x) }; g() }; f();");
 test({ y: 42 }, "function f() { function g() { eval('1'); assertEquals(27, x) }; g() }; f();");