[turbofan] Adds handling of number or oddball type feedback to SpeculativeNumberShiftLeft.

src/compiler/representation-change.h

Index: src/compiler/representation-change.h
diff --git a/src/compiler/representation-change.h b/src/compiler/representation-change.h
index 5514bfc738b365bf3648dc67e8110c7eeb82b64a..a9fc283c7e101c2d1031cfde0ed23fdaee620c84 100644
--- a/src/compiler/representation-change.h
+++ b/src/compiler/representation-change.h
@@ -139,6 +139,10 @@ class UseInfo {
     return UseInfo(MachineRepresentation::kFloat64, Truncation::Any(),
                    TypeCheckKind::kNumberOrOddball);
   }
+  static UseInfo CheckedNumberOrOddballAsWord32() {
+    return UseInfo(MachineRepresentation::kWord32, Truncation::Word32(),
+                   TypeCheckKind::kNumberOrOddball);
+  }
 
   // Undetermined representation.
   static UseInfo Any() {