[intrinsics] Nuke %HasCachedArrayIndex and %GetCachedArrayIndex.

src/crankshaft/ia32/lithium-codegen-ia32.cc

Index: src/crankshaft/ia32/lithium-codegen-ia32.cc
diff --git a/src/crankshaft/ia32/lithium-codegen-ia32.cc b/src/crankshaft/ia32/lithium-codegen-ia32.cc
index ab0cf3995002e5da4bbc104ab19cc0b88405d6fb..71a500034a917182e36c862bab714a7473a376d0 100644
--- a/src/crankshaft/ia32/lithium-codegen-ia32.cc
+++ b/src/crankshaft/ia32/lithium-codegen-ia32.cc
@@ -2187,28 +2187,6 @@ void LCodeGen::DoHasInstanceTypeAndBranch(LHasInstanceTypeAndBranch* instr) {
   EmitBranch(instr, BranchCondition(instr->hydrogen()));
 }
 
-
-void LCodeGen::DoGetCachedArrayIndex(LGetCachedArrayIndex* instr) {
-  Register input = ToRegister(instr->value());
-  Register result = ToRegister(instr->result());
-
-  __ AssertString(input);
-
-  __ mov(result, FieldOperand(input, String::kHashFieldOffset));
-  __ IndexFromHash(result, result);
-}
-
-
-void LCodeGen::DoHasCachedArrayIndexAndBranch(
-    LHasCachedArrayIndexAndBranch* instr) {
-  Register input = ToRegister(instr->value());
-
-  __ test(FieldOperand(input, String::kHashFieldOffset),
-          Immediate(String::kContainsCachedArrayIndexMask));
-  EmitBranch(instr, equal);
-}
-
-
 // Branches to a label or falls through with the answer in the z flag.  Trashes
 // the temp registers, but not the input.
 void LCodeGen::EmitClassOfTest(Label* is_true,