druntime: Move accumulatePure from core.internal.array to rt.profilegc

druntime/src/core/internal/array/utils.d

@@ -21,23 +21,16 @@ auto gcStatsPure() nothrow pure
     return impureBypass();
 }
 
-ulong accumulatePure(string file, int line, string funcname, string name, ulong size) nothrow pure
+version (D_ProfileGC)
 {
-    static ulong impureBypass(string file, int line, string funcname, string name, ulong size) @nogc nothrow
+    // Needs to be templated to emit only as needed.
+    ulong accumulatePure()(string file, int line, string funcname, string name, ulong size) @nogc nothrow pure
     {
         import core.internal.traits : externDFunc;
-
-        alias accumulate = externDFunc!("rt.profilegc.accumulate", void function(string file, uint line, string funcname, string type, ulong sz) @nogc nothrow);
-        accumulate(file, line, funcname, name, size);
-        return size;
+        alias impl = externDFunc!("rt.profilegc.accumulatePure", ulong function(string file, int line, string funcname, string name, ulong size) @nogc nothrow pure);
+        return impl(file, line, funcname, name, size);
     }
 
-    auto func = cast(ulong function(string file, int line, string funcname, string name, ulong size) @nogc nothrow pure)&impureBypass;
-    return func(file, line, funcname, name, size);
-}
-
-version (D_ProfileGC)
-{
     /**
      * TraceGC wrapper generator around the runtime hook `Hook`.
      * Params:

druntime/src/rt/profilegc.d

@@ -89,6 +89,18 @@ public void accumulate(string file, uint line, string funcname, string type, ulo
     }
 }
 
+public ulong accumulatePure(string file, int line, string funcname, string name, ulong size) @nogc nothrow pure
+{
+    static ulong impureBypass(string file, int line, string funcname, string name, ulong size) @nogc nothrow
+    {
+        accumulate(file, line, funcname, name, size);
+        return size;
+    }
+
+    auto func = cast(ulong function(string file, int line, string funcname, string name, ulong size) @nogc nothrow pure)&impureBypass;
+    return func(file, line, funcname, name, size);
+}
+
 // Merge thread local newCounts into globalNewCounts
 static ~this()
 {