Add %GetCallerJSFunction intrinsic

src/compiler/simplified-lowering.cc

Index: src/compiler/simplified-lowering.cc
diff --git a/src/compiler/simplified-lowering.cc b/src/compiler/simplified-lowering.cc
index 050d6ce0873211d55f179b50b1f4c1e88ef39b67..af99cf1853c4f981d58b1e205f3e590b86883975 100644
--- a/src/compiler/simplified-lowering.cc
+++ b/src/compiler/simplified-lowering.cc
@@ -344,6 +344,8 @@ class RepresentationSelector {
     } else if (upper->Is(Type::Number())) {
       // multiple uses => pick kRepFloat64.
       return kRepFloat64;
+    } else if (upper->Is(Type::Internal())) {
+      return kMachPtr;
     }
     return kRepTagged;
   }
@@ -1041,6 +1043,7 @@ class RepresentationSelector {
       case IrOpcode::kFloat64InsertHighWord32:
         return VisitBinop(node, kMachFloat64, kMachInt32, kMachFloat64);
       case IrOpcode::kLoadStackPointer:
+      case IrOpcode::kLoadFramePointer:
         return VisitLeaf(node, kMachPtr);
       case IrOpcode::kStateValues:
         VisitStateValues(node);