Fix constant function transition. Insert return instruction before returning.

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17250003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15180 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/stub-cache-arm.cc

@@ -577,7 +577,11 @@ void StubCompiler::GenerateStoreTransition(MacroAssembler* masm,
                       OMIT_REMEMBERED_SET,
                       OMIT_SMI_CHECK);
 
-  if (details.type() == CONSTANT_FUNCTION) return;
+  if (details.type() == CONSTANT_FUNCTION) {
+    ASSERT(value_reg.is(r0));
+    __ Ret();
+    return;
+  }
 
   int index = transition->instance_descriptors()->GetFieldIndex(
       transition->LastAdded());

src/ia32/stub-cache-ia32.cc

@@ -931,7 +931,11 @@ void StubCompiler::GenerateStoreTransition(MacroAssembler* masm,
                       OMIT_REMEMBERED_SET,
                       OMIT_SMI_CHECK);
 
-  if (details.type() == CONSTANT_FUNCTION) return;
+  if (details.type() == CONSTANT_FUNCTION) {
+    ASSERT(value_reg.is(eax));
+    __ ret(0);
+    return;
+  }
 
   int index = transition->instance_descriptors()->GetFieldIndex(
       transition->LastAdded());

src/x64/stub-cache-x64.cc

@@ -889,7 +889,11 @@ void StubCompiler::GenerateStoreTransition(MacroAssembler* masm,
                       OMIT_REMEMBERED_SET,
                       OMIT_SMI_CHECK);
 
-  if (details.type() == CONSTANT_FUNCTION) return;
+  if (details.type() == CONSTANT_FUNCTION) {
+    ASSERT(value_reg.is(rax));
+    __ ret(0);
+    return;
+  }
 
   int index = transition->instance_descriptors()->GetFieldIndex(
       transition->LastAdded());