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

src/builtins/mips/builtins-mips.cc

Index: src/builtins/mips/builtins-mips.cc
diff --git a/src/builtins/mips/builtins-mips.cc b/src/builtins/mips/builtins-mips.cc
index 88e5f4e398196ee192586ca61b98c5f26f1232b4..ca48d152ef857e21faffd42f68dca15592897864 100644
--- a/src/builtins/mips/builtins-mips.cc
+++ b/src/builtins/mips/builtins-mips.cc
@@ -1480,13 +1480,11 @@ void Builtins::Generate_CompileLazy(MacroAssembler* masm) {
   __ pop(new_target);
   __ pop(argument_count);
   __ lw(entry, FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset));
-  // Is the shared function marked for optimization?
-  __ lbu(t1,
-         FieldMemOperand(
-             entry, SharedFunctionInfo::kWasMarkedForOptimizationByteOffset));
-  __ And(
-      t1, t1,
-      Operand(1 << SharedFunctionInfo::kWasMarkedForOptimizationBitWithinByte));
+  // Is the shared function marked for tier up?
+  __ lbu(t1, FieldMemOperand(entry,
+                             SharedFunctionInfo::kMarkedForTierUpByteOffset));
+  __ And(t1, t1,
+         Operand(1 << SharedFunctionInfo::kMarkedForTierUpBitWithinByte));
   __ Branch(&gotta_call_runtime_no_stack, ne, t1, Operand(zero_reg));
   // Is the full code valid?
   __ lw(entry, FieldMemOperand(entry, SharedFunctionInfo::kCodeOffset));