Add messages when replacing nodes.

Author: aardvark179

src/main/java/org/truffleruby/core/kernel/TruffleKernelNodes.java

@@ -324,7 +324,7 @@ public void startSending(Reads variables, Reads frame) {
                 CompilerDirectives.shouldNotReachHere();
             }
             if (frame == Reads.SELF) {
-                replace(new ReadOwnFrameAndVariablesNode());
+                replace(new ReadOwnFrameAndVariablesNode(), "Starting to read own frame and variables");
             }
         }
 

src/main/java/org/truffleruby/language/ReadOwnFrameNode.java

@@ -23,7 +23,7 @@ public void startSending(Reads variables, Reads frame) {
             CompilerDirectives.shouldNotReachHere();
         }
         if (variables == Reads.SELF) {
-            replace(new ReadOwnFrameAndVariablesNode());
+            replace(new ReadOwnFrameAndVariablesNode(), "Starting to read own frame and variables");
         }
     }
 

src/main/java/org/truffleruby/language/arguments/ReadCallerFrameNode.java

@@ -46,7 +46,7 @@ public void startSending(Reads variables, Reads frame) {
             CompilerDirectives.shouldNotReachHere();
         }
         if (variables == Reads.CALLER) {
-            replace(new ReadCallerFrameAndVariablesNode());
+            replace(new ReadCallerFrameAndVariablesNode(), "Starting to read caller frame and variables");
         }
     }
 

src/main/java/org/truffleruby/language/arguments/ReadCallerVariablesNode.java

@@ -48,7 +48,7 @@ public void startSending(Reads variables, Reads frame) {
             CompilerDirectives.shouldNotReachHere();
         }
         if (frame == Reads.CALLER) {
-            replace(new ReadCallerFrameAndVariablesNode());
+            replace(new ReadCallerFrameAndVariablesNode(), "Starting to read caller frame and variables");
         }
     }