Use correct arguments adaptation environment when inlining function containing arguments.

test/mjsunit/compiler/inline-arguments.js

Index: test/mjsunit/compiler/inline-arguments.js
diff --git a/test/mjsunit/compiler/inline-arguments.js b/test/mjsunit/compiler/inline-arguments.js
index 9712b2d18352c042247e93abe15645e24030b5c7..502441633ca3b65e2d812746f6f4d450da3e39d3 100644
--- a/test/mjsunit/compiler/inline-arguments.js
+++ b/test/mjsunit/compiler/inline-arguments.js
@@ -80,3 +80,35 @@ F4(1);
 F4(1);
 %OptimizeFunctionOnNextCall(F4);
 F4(1);
+
+
+// Test correct adapation of arguments.
+(function () {
+  "use strict";  // Strict mode prevents arguments object from shadowing parameters.

[Michael Starzinger, 2012/03/20 17:48:41]

Line is longer than 80 characters.

+
+  function G2() {
+    assertArrayEquals([1,2], arguments);
+  }
+
+  function G4() {
+    assertArrayEquals([1,2,3,4], arguments);
+  }
+
+  function adapt2to4(a, b, c, d) {
+    G2.apply(this, arguments);
+  }
+
+  function adapt4to2(a, b) {
+    G4.apply(this, arguments);
+  }
+
+  function test_adaptation() {
+    adapt2to4(1, 2);
+    adapt4to2(1, 2, 3, 4);
+  }
+
+  test_adaptation();
+  test_adaptation();
+  %OptimizeFunctionOnNextCall(test_adaptation);
+  test_adaptation();
+})();