First step towards making JumpTarget work on ARM. Instead...

src/jump-target-light-inl.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 15 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifndef V8_JUMP_TARGET_LIGHT_INL_H_
 #define V8_JUMP_TARGET_LIGHT_INL_H_
 
 #include "virtual-frame-inl.h"
 
 namespace v8 {
 namespace internal {
 
-void JumpTarget::InitializeEntryElement(int index, FrameElement* target) {
-  UNIMPLEMENTED();
+// Construct a jump target.
+JumpTarget::JumpTarget(Directionality direction)
+    : entry_frame_set_(false),
+      entry_frame_(kInvalidVirtualFrameInitializer) {
 }
 
+JumpTarget::JumpTarget()
+    : entry_frame_set_(false),
+      entry_frame_(kInvalidVirtualFrameInitializer) {
+}
+
+
+BreakTarget::BreakTarget() { }
+
 } }  // namespace v8::internal
 
 #endif  // V8_JUMP_TARGET_LIGHT_INL_H_