go/ast: (*ast.BasicLit).End() is wrong for raw literals with carriage returns ('\r') #69861
Description
Same as #41197, but for *ast.BasicLit can happen for raw literal strings.
As per the go spec:
Carriage return characters ('\r') inside raw string literals are discarded from the raw string value.
The End pos is calculated as such:
Line 528 in b521ebb
We are not storing the end pos in the *ast.BasicLit, so it might be not accurate for raw string literals containing carriage returns.
I think that same as in #41197, we should only document that.