code review 7378063: go/parser: more precise comment

src/pkg/go/parser/parser.go

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 // Package parser implements a parser for Go source files. Input may be
 // provided in a variety of forms (see the various Parse* functions); the
 // output is an abstract syntax tree (AST) representing the Go source. The
 // parser is invoked through one of the Parse* functions.
 //
 package parser
@@ skipping 1211 matching lines @@
         // know if a key that's an identifier is a struct field name or a name
         // denoting a value. The former is not resolved by the parser or the
         // resolver.
         //
         // Instead, _try_ to resolve such a key if possible. If it resolves,
         // it a) has correctly resolved, or b) incorrectly resolved because
         // the key is a struct field with a name matching another identifier.
         // In the former case we are done, and in the latter case we don't
         // care because the type checker will do a separate field lookup.
         //
-        // If the key does not resolve, it must a) be defined at the top level
-        // in another file of the same package, or the universe scope, or be
+        // If the key does not resolve, it a) must be defined at the top
+        // level in another file of the same package, the universe scope, or be
         // undeclared; or b) it is a struct field. In the former case, the type
         // checker can do a top-level lookup, and in the latter case it will do
         // a separate field lookup.
         x := p.checkExpr(p.parseExpr(keyOk))
         if keyOk {
                 if p.tok == token.COLON {
                         colon := p.pos
                         p.next()
                         // Try to resolve the key but don't collect it
                         // as unresolved identifier if it fails so that
@@ skipping 1157 matching lines @@
                 Doc:        doc,
                 Package:    pos,
                 Name:       ident,
                 Decls:      decls,
                 Scope:      p.pkgScope,
                 Imports:    p.imports,
                 Unresolved: p.unresolved[0:i],
                 Comments:   p.comments,
         }
 }