[compiler] Make SFI "optimize" flag a "tier up" flag

src/builtins/mips64/builtins-mips64.cc

Index: src/builtins/mips64/builtins-mips64.cc
diff --git a/src/builtins/mips64/builtins-mips64.cc b/src/builtins/mips64/builtins-mips64.cc
index ea94066563f958fa9727d578ed1c91aa3540f773..5882080f17a80d0e0ee73fa0cead03406891eb57 100644
--- a/src/builtins/mips64/builtins-mips64.cc
+++ b/src/builtins/mips64/builtins-mips64.cc
@@ -1473,12 +1473,10 @@ void Builtins::Generate_CompileLazy(MacroAssembler* masm) {
   __ pop(argument_count);
   __ ld(entry, FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset));
   // Is the shared function marked for optimization?
-  __ lbu(a5,
-         FieldMemOperand(
-             entry, SharedFunctionInfo::kWasMarkedForOptimizationByteOffset));
-  __ And(
-      a5, a5,
-      Operand(1 << SharedFunctionInfo::kWasMarkedForOptimizationBitWithinByte));
+  __ lbu(a5, FieldMemOperand(
+                 entry, SharedFunctionInfo::kWasMarkedForTierUpByteOffset));
+  __ And(a5, a5,
+         Operand(1 << SharedFunctionInfo::kWasMarkedForTierUpBitWithinByte));
   __ Branch(&gotta_call_runtime_no_stack, ne, a5, Operand(zero_reg));
   // Is the full code valid?
   __ ld(entry, FieldMemOperand(entry, SharedFunctionInfo::kCodeOffset));