VM: New calling convention for generated code.

runtime/vm/code_patcher.cc

Index: runtime/vm/code_patcher.cc
diff --git a/runtime/vm/code_patcher.cc b/runtime/vm/code_patcher.cc
index d57957727cbf49525a5cc560f0b0e3c9753bb513..b05611d20854b33c24bfc45eac8d4dd39f0a3ae1 100644
--- a/runtime/vm/code_patcher.cc
+++ b/runtime/vm/code_patcher.cc
@@ -61,7 +61,7 @@ void CodePatcher::PatchEntry(const Code& code) {
   ASSERT(patch_buffer != 0);
   JumpPattern jmp_patch(patch_buffer, code);
   ASSERT(jmp_patch.IsValid());
-  const uword jump_target = jmp_patch.TargetAddress();
+  const Code& jump_target = Code::Handle(jmp_patch.TargetCode());
   intptr_t length = jmp_patch.pattern_length_in_bytes();
   {
     WritableInstructionsScope writable_code(patch_addr, length);
@@ -69,7 +69,7 @@ void CodePatcher::PatchEntry(const Code& code) {
     SwapCode(jmp_patch.pattern_length_in_bytes(),
              reinterpret_cast<char*>(patch_addr),
              reinterpret_cast<char*>(patch_buffer));
-    jmp_entry.SetTargetAddress(jump_target);
+    jmp_entry.SetTargetCode(jump_target);
   }
 }
 
@@ -82,7 +82,7 @@ void CodePatcher::RestoreEntry(const Code& code) {
   ASSERT(patch_addr != 0);
   JumpPattern jmp_entry(patch_addr, code);
   ASSERT(jmp_entry.IsValid());
-  const uword jump_target = jmp_entry.TargetAddress();
+  const Code& jump_target = Code::Handle(jmp_entry.TargetCode());
   const uword patch_buffer = code.GetPatchCodePc();
   ASSERT(patch_buffer != 0);
   // 'patch_buffer' contains original entry code.
@@ -96,7 +96,7 @@ void CodePatcher::RestoreEntry(const Code& code) {
              reinterpret_cast<char*>(patch_addr),
              reinterpret_cast<char*>(patch_buffer));
     ASSERT(jmp_patch.IsValid());
-    jmp_patch.SetTargetAddress(jump_target);
+    jmp_patch.SetTargetCode(jump_target);
   }
 }