Rewrite decodeURL as builtin function, remove now unused runtime functions.

src/full-codegen/x64/full-codegen-x64.cc

Index: src/full-codegen/x64/full-codegen-x64.cc
diff --git a/src/full-codegen/x64/full-codegen-x64.cc b/src/full-codegen/x64/full-codegen-x64.cc
index 1ef9ceebac7680eed83a20eca358b98e52140f6c..ee03cb3228bc9a8b5b775c19ab9f0549edd1bf59 100644
--- a/src/full-codegen/x64/full-codegen-x64.cc
+++ b/src/full-codegen/x64/full-codegen-x64.cc
@@ -2780,72 +2780,6 @@ void FullCodeGenerator::EmitValueOf(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitOneByteSeqStringSetChar(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK_EQ(3, args->length());
-
-  Register string = rax;
-  Register index = rbx;
-  Register value = rcx;
-
-  VisitForStackValue(args->at(0));        // index
-  VisitForStackValue(args->at(1));        // value
-  VisitForAccumulatorValue(args->at(2));  // string
-  PopOperand(value);
-  PopOperand(index);
-
-  if (FLAG_debug_code) {
-    __ Check(__ CheckSmi(value), kNonSmiValue);
-    __ Check(__ CheckSmi(index), kNonSmiValue);
-  }
-
-  __ SmiToInteger32(value, value);
-  __ SmiToInteger32(index, index);
-
-  if (FLAG_debug_code) {
-    static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag;
-    __ EmitSeqStringSetCharCheck(string, index, value, one_byte_seq_type);
-  }
-
-  __ movb(FieldOperand(string, index, times_1, SeqOneByteString::kHeaderSize),
-          value);
-  context()->Plug(string);
-}
-
-
-void FullCodeGenerator::EmitTwoByteSeqStringSetChar(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK_EQ(3, args->length());
-
-  Register string = rax;
-  Register index = rbx;
-  Register value = rcx;
-
-  VisitForStackValue(args->at(0));        // index
-  VisitForStackValue(args->at(1));        // value
-  VisitForAccumulatorValue(args->at(2));  // string
-  PopOperand(value);
-  PopOperand(index);
-
-  if (FLAG_debug_code) {
-    __ Check(__ CheckSmi(value), kNonSmiValue);
-    __ Check(__ CheckSmi(index), kNonSmiValue);
-  }
-
-  __ SmiToInteger32(value, value);
-  __ SmiToInteger32(index, index);
-
-  if (FLAG_debug_code) {
-    static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag;
-    __ EmitSeqStringSetCharCheck(string, index, value, two_byte_seq_type);
-  }
-
-  __ movw(FieldOperand(string, index, times_2, SeqTwoByteString::kHeaderSize),
-          value);
-  context()->Plug(rax);
-}
-
-
 void FullCodeGenerator::EmitStringCharFromCode(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);