cmd/compile/internal/gc: fix comments

Change-Id: Id7b0ead39e961a16a85da3e308db10dd4f9b55c3
GitHub-Last-Rev: e640c4a61a
GitHub-Pull-Request: golang/go#42120
Reviewed-on: https://go-review.googlesource.com/c/go/+/264080
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>

src/cmd/compile/internal/gc/dcl.go

@@ -283,7 +283,7 @@ func oldname(s *types.Sym) *Node {
 			c.Name.Defn = n
 
 			// Link into list of active closure variables.
-			// Popped from list in func closurebody.
+			// Popped from list in func funcLit.
 			c.Name.Param.Outer = n.Name.Param.Innermost
 			n.Name.Param.Innermost = c
 

src/cmd/compile/internal/gc/subr.go

@@ -348,7 +348,7 @@ func newname(s *types.Sym) *Node {
 	return n
 }
 
-// newname returns a new ONAME Node associated with symbol s at position pos.
+// newnamel returns a new ONAME Node associated with symbol s at position pos.
 // The caller is responsible for setting n.Name.Curfn.
 func newnamel(pos src.XPos, s *types.Sym) *Node {
 	if s == nil {

src/cmd/compile/internal/gc/syntax.go

@@ -460,14 +460,14 @@ type Param struct {
 	//     x1 := xN.Defn
 	//     x1.Innermost = xN.Outer
 	//
-	// We leave xN.Innermost set so that we can still get to the original
+	// We leave x1.Innermost set so that we can still get to the original
 	// variable quickly. Not shown here, but once we're
 	// done parsing a function and no longer need xN.Outer for the
-	// lexical x reference links as described above, closurebody
+	// lexical x reference links as described above, funcLit
 	// recomputes xN.Outer as the semantic x reference link tree,
 	// even filling in x in intermediate closures that might not
 	// have mentioned it along the way to inner closures that did.
-	// See closurebody for details.
+	// See funcLit for details.
 	//
 	// During the eventual compilation, then, for closure variables we have:
 	//