first steps in adding template/macro calls to stack traces

lib/core/macros.nim

@@ -21,7 +21,7 @@ type
     nnkInt16Lit, nnkInt32Lit, nnkInt64Lit, nnkUIntLit, nnkUInt8Lit,
     nnkUInt16Lit, nnkUInt32Lit, nnkUInt64Lit, nnkFloatLit,
     nnkFloat32Lit, nnkFloat64Lit, nnkFloat128Lit, nnkStrLit, nnkRStrLit,
-    nnkTripleStrLit, nnkNilLit, nnkMetaNode, nnkDotCall,
+    nnkTripleStrLit, nnkNilLit, nnkComesFrom, nnkDotCall,
     nnkCommand, nnkCall, nnkCallStrLit, nnkInfix,
     nnkPrefix, nnkPostfix, nnkHiddenCallConv,
     nnkExprEqExpr,

lib/system/excpt.nim

@@ -70,6 +70,18 @@ proc getFrame*(): PFrame {.compilerRtl, inl.} = framePtr
 proc popFrame {.compilerRtl, inl.} =
   framePtr = framePtr.prev
 
+when false:
+  proc popFrameOfAddr(s: PFrame) {.compilerRtl.} =
+    var it = framePtr
+    if it == s:
+      framePtr = framePtr.prev
+    else:
+      while it != nil:
+        if it == s:
+          framePtr = it.prev
+          break
+        it = it.prev
+
 proc setFrame*(s: PFrame) {.compilerRtl, inl.} =
   framePtr = s