improve the error messages regarding type mismatches in overloading resolution

tests/errmsgs/tdetailed_position.nim

@@ -0,0 +1,22 @@
+
+discard """
+cmd: "nim check $file"
+errormsg: "type mismatch: got (int literal(1), int literal(2), int literal(3))"
+nimout: '''
+but expected one of:
+proc main(a, b, c: string)
+first type mismatch at position: 1
+required type: string
+but expression '1' is of type: int literal(1)
+
+expression: main(1, 2, 3)
+'''
+"""
+
+const
+  myconst = "abcdefghijklmnopqrstuvwxyz"
+
+proc main(a, b, c: string) {.deprecated: "use foo " & "instead " & myconst.} =
+  return
+
+main(1, 2, 3)