[stubs] Add initializing constructor to CSA::Variable

src/compiler/code-assembler.cc

Index: src/compiler/code-assembler.cc
diff --git a/src/compiler/code-assembler.cc b/src/compiler/code-assembler.cc
index 99de1cef424003793501b1512ea1c7856a4c17e3..5a3cf95e9e23a33488e289e190318797ccc8faae 100644
--- a/src/compiler/code-assembler.cc
+++ b/src/compiler/code-assembler.cc
@@ -700,6 +700,13 @@ CodeAssemblerVariable::CodeAssemblerVariable(CodeAssembler* assembler,
   state_->variables_.insert(impl_);
 }
 
+CodeAssemblerVariable::CodeAssemblerVariable(CodeAssembler* assembler,
+                                             MachineRepresentation rep,
+                                             Node* initial_value)
+    : CodeAssemblerVariable(assembler, rep) {
+  Bind(initial_value);
+}
+
 CodeAssemblerVariable::~CodeAssemblerVariable() {
   state_->variables_.erase(impl_);
 }