Add fast path for exception vreg copying.

It is not necessary to decode CodeInfo in GetVReg
since the caller already did it.

Test: ./art/test.py -b --host --64 --interpreter
Change-Id: I0f8941f43acdc0f2c43b78ef87d3e796e320c959
diff --git a/runtime/quick_exception_handler.cc b/runtime/quick_exception_handler.cc
index 1777b3d..727bdf0 100644
--- a/runtime/quick_exception_handler.cc
+++ b/runtime/quick_exception_handler.cc
@@ -325,10 +325,12 @@
     // Get vreg value from its current location.
     uint32_t vreg_value;
     VRegKind vreg_kind = ToVRegKind(throw_vreg_map[vreg].GetKind());
-    bool get_vreg_success = stack_visitor->GetVReg(stack_visitor->GetMethod(),
-                                                   vreg,
-                                                   vreg_kind,
-                                                   &vreg_value);
+    bool get_vreg_success =
+        stack_visitor->GetVReg(stack_visitor->GetMethod(),
+                               vreg,
+                               vreg_kind,
+                               &vreg_value,
+                               throw_vreg_map[vreg]);
     CHECK(get_vreg_success) << "VReg " << vreg << " was optimized out ("
                             << "method=" << ArtMethod::PrettyMethod(stack_visitor->GetMethod())
                             << ", dex_pc=" << stack_visitor->GetDexPc() << ", "