Allow to configure print accuracy and fetch temprory results from profiler

compiler/util/src/org/jetbrains/kotlin/utils/Profiler.java

@@ -68,10 +68,12 @@ public class Profiler {
     private boolean paused = true;
     private StackTraceElement[] stackTrace;
     private boolean mute;
+    private String formatString;
 
     private Profiler(@NotNull String name, @NotNull Logger log) {
         this.name = name;
         this.log = log;
+        setPrintAccuracy(3);
     }
 
     public Profiler recordStackTrace(int depth) {
@@ -164,6 +166,10 @@ public class Profiler {
         return this;
     }
 
+    public long getCumulative() {
+        return cumulative;
+    }
+
     public Profiler mute() {
         mute = true;
         return this;
@@ -227,7 +233,12 @@ public class Profiler {
         return this;
     }
 
-    private static String format(long delta) {
+    public Profiler setPrintAccuracy(int accuracy) {
-        return String.format("%.3fs", delta / 1e9);
+        formatString = "%." + accuracy + "fs";
+        return this;
+    }
+
+    private String format(long delta) {
+        return String.format(formatString, delta / 1e9);
     }
 }