Try to avoid checks for lazy initialization when recompiling.

runtime/vm/intermediate_language_mips.cc

Index: runtime/vm/intermediate_language_mips.cc
diff --git a/runtime/vm/intermediate_language_mips.cc b/runtime/vm/intermediate_language_mips.cc
index 8bf386e55ec04ef253b9237270bd3f83287c0fce..205e1ecb157e82aeaeb6020d622fc6958abaa9ac 100644
--- a/runtime/vm/intermediate_language_mips.cc
+++ b/runtime/vm/intermediate_language_mips.cc
@@ -1669,6 +1669,11 @@ LocationSummary* LoadStaticFieldInstr::MakeLocationSummary() const {
 }
 
 
+// When the parser is building an implicit static getter for optimization,
+// it can generate a function body where deoptimization ids do not line up
+// with the unoptimized code.
+//
+// This is safe only so long as LoadStaticFieldInstr cannot deoptimize.
 void LoadStaticFieldInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   __ TraceSimMsg("LoadStaticFieldInstr");
   Register field = locs()->in(0).reg();