go/ast: note that in BasicLit CHARs and STRINGs are quoted

The Value field of ast.BasicLit is a string field holding the literal
string. For CHARs and STRINGs, the BasicLit.Value literal includes
quotes, so to use the value in practise one will often need to Unquote

Since this is a common gotcha (I've been bitten by this a few times),
document it, and suggest the use of the strconv.Unquote functions.

Fixes #39590

Change-Id: Ie3e13f5a2a71bb1b59e03bc5b3a16d8e2e7c01d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/244960
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
1 file changed
tree: 3c1c90c008a864c2e073174e8d7b22fb950f4b0e
  1. .gitattributes
  2. .github/
  3. .gitignore
  9. README.md
  10. SECURITY.md
  11. api/
  12. doc/
  13. favicon.ico
  14. lib/
  15. misc/
  16. robots.txt
  17. src/
  18. test/

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