nim: patch compiler to emit native file/line info format

pkgs/development/compilers/nim/default.nix

@@ -114,7 +114,7 @@ in {
 
       ./nixbuild.patch
       # Load libraries at runtime by absolute path
-    ];
+    ] ++ lib.optional (!stdenv.hostPlatform.isWindows) ./toLocation.patch;
 
     configurePhase = ''
       runHook preConfigure

pkgs/development/compilers/nim/toLocation.patch

@@ -0,0 +1,20 @@
+diff --git a/lib/std/private/miscdollars.nim b/lib/std/private/miscdollars.nim
+index a41cf1bc1..5b92c696a 100644
+--- a/lib/std/private/miscdollars.nim
++++ b/lib/std/private/miscdollars.nim
+@@ -4,12 +4,12 @@ template toLocation*(result: var string, file: string | cstring, line: int, col:
+   # it can be done in a single place.
+   result.add file
+   if line > 0:
+-    result.add "("
++    result.add ':'
+     # simplify this after moving moving `include strmantle` above import assertions`
+     when declared(addInt): result.addInt line
+     else: result.add $line
+     if col > 0:
+-      result.add ", "
++      result.add ':'
+       when declared(addInt): result.addInt col
+       else: result.add $col
+-    result.add ")"
++    result.add ':'