vector-based ICs did not update type feedback counts correctly.

src/mips/code-stubs-mips.cc

Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index 9dd8bdc07f0ee6b33d07c6e4ab83a4fa8f4257e9..4601f8b3ed19f0854670d618464b15d664fe6095 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -2850,19 +2850,6 @@ void CallICStub::Generate(MacroAssembler* masm) {
   __ LoadRoot(at, Heap::kuninitialized_symbolRootIndex);
   __ Branch(&miss, eq, t0, Operand(at));
 
-  if (!FLAG_trace_ic) {
-    // We are going megamorphic. If the feedback is a JSFunction, it is fine
-    // to handle it here. More complex cases are dealt with in the runtime.
-    __ AssertNotSmi(t0);
-    __ GetObjectType(t0, t1, t1);
-    __ Branch(&miss, ne, t1, Operand(JS_FUNCTION_TYPE));
-    __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize);
-    __ Addu(t0, a2, Operand(t0));
-    __ LoadRoot(at, Heap::kmegamorphic_symbolRootIndex);
-    __ sw(at, FieldMemOperand(t0, FixedArray::kHeaderSize));
-    __ Branch(&slow_start);
-  }
-
   // We are here because tracing is on or we are going monomorphic.
   __ bind(&miss);
   GenerateMiss(masm);