[turbofan] Constant propagation for JumpIfFalse/JumpIfTrue.

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 214d534cb2d92e56e3ef12bf9c149d9c41635ac9..d0cd01f959d4423db6db6d691d6c88ab77e1d8f7 100644
--- a/src/code-stub-assembler.h
+++ b/src/code-stub-assembler.h
@@ -685,6 +685,7 @@ class V8_EXPORT_PRIVATE CodeStubAssembler : public compiler::CodeAssembler {
   Node* IsJSReceiver(Node* object);
   Node* IsMap(Node* object);
   Node* IsCallableMap(Node* map);
+  Node* IsBoolean(Node* object);
   Node* IsName(Node* object);
   Node* IsSymbol(Node* object);
   Node* IsPrivateSymbol(Node* object);