[Ignition] Teach CompileLazy about interpreted functions.

src/builtins/ia32/builtins-ia32.cc

Index: src/builtins/ia32/builtins-ia32.cc
diff --git a/src/builtins/ia32/builtins-ia32.cc b/src/builtins/ia32/builtins-ia32.cc
index 0f23ec1ebb48ba13c78d7dcc992f6d0acdc012ed..bd638672b1efa061881dcccaf2dac027e10983bf 100644
--- a/src/builtins/ia32/builtins-ia32.cc
+++ b/src/builtins/ia32/builtins-ia32.cc
@@ -1122,14 +1122,14 @@ void Builtins::Generate_CompileLazy(MacroAssembler* masm) {
   __ test_b(FieldOperand(entry, SharedFunctionInfo::kMarkedForTierUpByteOffset),
             Immediate(1 << SharedFunctionInfo::kMarkedForTierUpBitWithinByte));
   __ j(not_zero, &gotta_call_runtime_no_stack);
-  // Is the full code valid?
+
+  // If SFI points to anything other than CompileLazy, install that.
   __ mov(entry, FieldOperand(entry, SharedFunctionInfo::kCodeOffset));
-  __ mov(ebx, FieldOperand(entry, Code::kFlagsOffset));
-  __ and_(ebx, Code::KindField::kMask);
-  __ shr(ebx, Code::KindField::kShift);
-  __ cmp(ebx, Immediate(Code::BUILTIN));
+  __ Move(ebx, masm->CodeObject());
+  __ cmp(entry, ebx);
   __ j(equal, &gotta_call_runtime_no_stack);
-  // Yes, install the full code.
+
+  // Install the SFI's code entry.
   __ lea(entry, FieldOperand(entry, Code::kHeaderSize));
   __ mov(FieldOperand(closure, JSFunction::kCodeEntryOffset), entry);
   __ RecordWriteCodeEntryField(closure, entry, ebx);