Change the order of arguments of the (One|Two)ByteSeqStringSetChar intrinsic.

src/mips64/full-codegen-mips64.cc

Index: src/mips64/full-codegen-mips64.cc
diff --git a/src/mips64/full-codegen-mips64.cc b/src/mips64/full-codegen-mips64.cc
index 082303967720c1088fbd399f9d139d7395953cb6..e1f5ed4c64c92211e74aa14583d84fa8dc7856af 100644
--- a/src/mips64/full-codegen-mips64.cc
+++ b/src/mips64/full-codegen-mips64.cc
@@ -3435,9 +3435,9 @@ void FullCodeGenerator::EmitOneByteSeqStringSetChar(CallRuntime* expr) {
   Register index = a1;
   Register value = a2;
 
-  VisitForStackValue(args->at(1));  // index
-  VisitForStackValue(args->at(2));  // value
-  VisitForAccumulatorValue(args->at(0));  // string
+  VisitForStackValue(args->at(0));        // index
+  VisitForStackValue(args->at(1));        // value
+  VisitForAccumulatorValue(args->at(2));  // string
   __ Pop(index, value);
 
   if (FLAG_debug_code) {
@@ -3472,9 +3472,9 @@ void FullCodeGenerator::EmitTwoByteSeqStringSetChar(CallRuntime* expr) {
   Register index = a1;
   Register value = a2;
 
-  VisitForStackValue(args->at(1));  // index
-  VisitForStackValue(args->at(2));  // value
-  VisitForAccumulatorValue(args->at(0));  // string
+  VisitForStackValue(args->at(0));        // index
+  VisitForStackValue(args->at(1));        // value
+  VisitForAccumulatorValue(args->at(2));  // string
   __ Pop(index, value);
 
   if (FLAG_debug_code) {