WIP: Register allocator crash repro.

src/code-stub-assembler.h

Index: src/code-stub-assembler.h
diff --git a/src/code-stub-assembler.h b/src/code-stub-assembler.h
index efd882aba0134f3e4f7dcb3ca77abc614d8030fa..e90bfa7819a4262ad72b96bafc48c9a266430350 100644
--- a/src/code-stub-assembler.h
+++ b/src/code-stub-assembler.h
@@ -223,6 +223,8 @@ class CodeStubAssembler : public compiler::CodeAssembler {
   compiler::Node* BitFieldDecode(compiler::Node* word32, uint32_t shift,
                                  uint32_t mask);
 
+  void Boom();
+
   // Various building blocks for stubs doing property lookups.
   void TryToName(compiler::Node* key, Label* if_keyisindex, Variable* var_index,
                  Label* if_keyisunique, Label* call_runtime);