MIPS: Update ASSERT on arm to support SmiOrTagged in ClampToUint8

Port r14881 (0b784159)

BUG=

Review URL: https://codereview.chromium.org/15769005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14891 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/lithium-mips.cc

@@ -1909,7 +1909,7 @@ LInstruction* LChunkBuilder::DoClampToUint8(HClampToUint8* instr) {
   } else if (input_rep.IsInteger32()) {
     return DefineAsRegister(new(zone()) LClampIToUint8(reg));
   } else {
-    ASSERT(input_rep.IsTagged());
+    ASSERT(input_rep.IsSmiOrTagged());
     // Register allocator doesn't (yet) support allocation of double
     // temps. Reserve f22 explicitly.
     LClampTToUint8* result = new(zone()) LClampTToUint8(reg, FixedTemp(f22));