MIPS: Reland and fix "Add support for keyed-call on arrays of fast elements”.

src/mips/lithium-mips.cc

Index: src/mips/lithium-mips.cc
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index 03c64d9d2784282bbf763d3f5fb65501a4f2fc84..1635b77fa7ad128fde2753ffc59c02dda8525a93 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -1330,8 +1330,10 @@ LInstruction* LChunkBuilder::DoCallNewArray(HCallNewArray* instr) {
 LInstruction* LChunkBuilder::DoCallFunction(HCallFunction* instr) {
   LOperand* context = UseFixed(instr->context(), cp);
   LOperand* function = UseFixed(instr->function(), a1);
-  return MarkAsCall(
-      DefineFixed(new(zone()) LCallFunction(context, function), v0), instr);
+  LCallFunction* call = new(zone()) LCallFunction(context, function);
+  LInstruction* result = DefineFixed(call, v0);
+  if (instr->IsTailCall()) return result;
+  return MarkAsCall(result, instr);
 }