[turbofan] Introduce ToBooleanHints on ToBoolean operators.

src/compiler/type-hint-analyzer.h

Index: src/compiler/type-hint-analyzer.h
diff --git a/src/compiler/type-hint-analyzer.h b/src/compiler/type-hint-analyzer.h
index ee3bebfd7cb4139b212c5655d7c4214cacd317e1..1a799056335bd5994084affe7e8c858b4884221b 100644
--- a/src/compiler/type-hint-analyzer.h
+++ b/src/compiler/type-hint-analyzer.h
@@ -5,18 +5,14 @@
 #ifndef V8_COMPILER_TYPE_HINT_ANALYZER_H_
 #define V8_COMPILER_TYPE_HINT_ANALYZER_H_
 
+#include "src/compiler/type-hints.h"
 #include "src/handles.h"
-#include "src/utils.h"
 #include "src/zone-containers.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
-// Forward declarations.
-class BinaryOperationHints;
-
-
 // The result of analyzing type hints.
 class TypeHintAnalysis final : public ZoneObject {
  public:
@@ -26,6 +22,7 @@ class TypeHintAnalysis final : public ZoneObject {
 
   bool GetBinaryOperationHints(TypeFeedbackId id,
                                BinaryOperationHints* hints) const;
+  bool GetToBooleanHints(TypeFeedbackId id, ToBooleanHints* hints) const;
 
  private:
   Infos const infos_;