[GR-51653] Expose method printing format from CallTreePrinter

Author: rudsberg

substratevm/src/com.oracle.graal.pointsto/src/com/oracle/graal/pointsto/reports/CallTreePrinter.java

@@ -70,6 +70,7 @@ public final class CallTreePrinter {
 
     public static final Pattern CAMEL_CASE_PATTERN = Pattern.compile(
                     "\\b[a-zA-Z]|[A-Z]|\\.");
+    public static final String METHOD_FORMAT = "%H.%n(%P):%R";
 
     public static void print(BigBang bb, String reportsPath, String reportName) {
         CallTreePrinter printer = new CallTreePrinter(bb);
@@ -259,8 +260,6 @@ private static SourceReference[] sourceReference(BytecodePosition position) {
         return sourceReference.toArray(new SourceReference[sourceReference.size()]);
     }
 
-    private static final String METHOD_FORMAT = "%H.%n(%P):%R";
-
     private void printMethods(PrintWriter out) {
         out.println("VM Entry Points");
         Iterator<MethodNode> iterator = methodToNode.values().stream().filter(n -> n.isEntryPoint).iterator();