Add Patch to correct Profiler output.

Uhe printing is corrected from using %lld to using %llu
to avoid seeing negative numbers in cases where we'd overflow
also we don't try to print aligned numbers,
rather we delimit by spaces, since the previous format would
sometimes have numbers squash into each other making it unreadable

This commit also removed a previously unused variable

Author: stefan-koch-sociomantic

patches/druntime/0007-Replace-buggy-time-based-profile-with-tick-based-pro.patch

@@ -0,0 +1,51 @@
+From 2ca0241a67ad67dc16f403ac6cb67563f9910388 Mon Sep 17 00:00:00 2001
+From: Stefan Koch <stefan.koch@sociomantic.com>
+Date: Fri, 26 Apr 2019 14:23:34 +0200
+Subject: [PATCH] Replace buggy time-based profile with tick based profile
+
+---
+ src/rt/trace.d | 13 ++++++-------
+ 1 file changed, 6 insertions(+), 7 deletions(-)
+
+diff --git a/src/rt/trace.d b/src/rt/trace.d
+index 07fd333..69afbb6 100644
+--- a/src/rt/trace.d
++++ b/src/rt/trace.d
+@@ -26,7 +26,7 @@ private
+ 
+ extern (C):
+ 
+-alias long timer_t;
++alias ulong timer_t;
+ 
+ /////////////////////////////////////
+ //
+@@ -292,7 +292,7 @@ private void trace_times(FILE* fplog, Symbol*[] psymbols)
+     // Print array
+     timer_t freq;
+     QueryPerformanceFrequency(&freq);
+-    fprintf(fplog,"\n======== Timer Is %lld Ticks/Sec, Times are in Microsecs ========\n\n",freq);
++    fprintf(fplog,"\n======== Times are in Ticks (Cycles) ========\n\n");
+     fprintf(fplog,"  Num          Tree        Func        Per\n");
+     fprintf(fplog,"  Calls        Time        Time        Call\n\n");
+     foreach (s; psymbols)
+@@ -313,12 +313,11 @@ private void trace_times(FILE* fplog, Symbol*[] psymbols)
+         if (calls == 0)
+             calls = 1;
+ 
+-        tl = (s.totaltime * 1000000) / freq;
+-        fl = (s.functime  * 1000000) / freq;
+-        percall = s.functime / calls;
+-        pl = (s.functime * 1000000) / calls / freq;
++        tl = s.totaltime;
++        fl = s.functime;
++        pl = s.functime / calls;
+ 
+-        fprintf(fplog,"%7llu%12lld%12lld%12lld     %.*s\n",
++        fprintf(fplog,"%llu %llu %llu %llu     %.*s\n",
+                       calls, tl, fl, pl, id.length, id.ptr);
+     }
+ }
+-- 
+2.7.4
+