Return a valid map for PropertyAccessInfos with Boolean type.

test/mjsunit/regress/regress-crbug-340064.js

Index: test/mjsunit/regress/regress-crbug-340064.js
diff --git a/test/mjsunit/regress/regress-array-pop-deopt.js b/test/mjsunit/regress/regress-crbug-340064.js
similarity index 90%
copy from test/mjsunit/regress/regress-array-pop-deopt.js
copy to test/mjsunit/regress/regress-crbug-340064.js
index 9a0d35d3aa61b0bd3a05971b90f7c7544084d76c..f2ab1d66759cd5c2abfade19d4cf566595eec936 100644
--- a/test/mjsunit/regress/regress-array-pop-deopt.js
+++ b/test/mjsunit/regress/regress-crbug-340064.js
@@ -27,15 +27,12 @@
 
 // Flags: --allow-natives-syntax
 
-var o = [6,7,8,9];
-
-function f(b) {
-  var v = o.pop() + b;
-  return v;
+function f(v) {
+  return v.length;
 }
 
-assertEquals(10, f(1));
-assertEquals(9, f(1));
-assertEquals(8, f(1));
+assertEquals(4, f("test"));
+assertEquals(4, f("test"));
+assertEquals(undefined, f(true));
 %OptimizeFunctionOnNextCall(f);
-assertEquals("61", f("1"));
+assertEquals(undefined, f(true));