[turbofan] Bailout if LoadBuffer typing assumption doesn't hold.

src/compiler/simplified-lowering.h

Index: src/compiler/simplified-lowering.h
diff --git a/src/compiler/simplified-lowering.h b/src/compiler/simplified-lowering.h
index 6792045d7bffe0ce5a88324c870abbab772a003e..358bd97f9c21fb91239efc6edc77e7a66a25b99e 100644
--- a/src/compiler/simplified-lowering.h
+++ b/src/compiler/simplified-lowering.h
@@ -41,6 +41,11 @@ class SimplifiedLowering final {
   void DoStringLessThan(Node* node);
   void DoStringLessThanOrEqual(Node* node);
 
+  // TODO(bmeurer): This is a gigantic hack to support the gigantic LoadBuffer
+  // typing hack to support the gigantic "asm.js should be fast without proper
+  // verifier"-hack, ... Kill this! Soon! Really soon! I'm serious!
+  bool abort_compilation_ = false;
+
  private:
   JSGraph* const jsgraph_;
   Zone* const zone_;