src: a/an grammar fixes

Change-Id: I179b50ae8e73677d4d408b83424afbbfe6aa17a1
GitHub-Last-Rev: 2e2d9c1
GitHub-Pull-Request: golang#63478
Reviewed-on: https://go-review.googlesource.com/c/go/+/534015
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>

Author: scop

src/cmd/compile/internal/devirtualize/devirtualize.go

@@ -70,7 +70,7 @@ func staticCall(call *ir.CallExpr) {
 		return
 	}
 
-	// If typ *has* a shape type, then it's an shaped, instantiated
+	// If typ *has* a shape type, then it's a shaped, instantiated
 	// type like T[go.shape.int], and its methods (may) have an extra
 	// dictionary parameter. We could devirtualize this call if we
 	// could derive an appropriate dictionary argument.

src/cmd/compile/internal/escape/graph.go

@@ -38,7 +38,7 @@ import (
 //        e.value(k, n.Left)
 //    }
 
-// An location represents an abstract location that stores a Go
+// A location represents an abstract location that stores a Go
 // variable.
 type location struct {
 	n         ir.Node  // represented variable or expression, if any

src/cmd/compile/internal/ir/expr.go

@@ -350,7 +350,7 @@ func NewKeyExpr(pos src.XPos, key, value Node) *KeyExpr {
 	return n
 }
 
-// A StructKeyExpr is an Field: Value composite literal key.
+// A StructKeyExpr is a Field: Value composite literal key.
 type StructKeyExpr struct {
 	miniExpr
 	Field *types.Field

src/cmd/compile/internal/ssa/magic.go

@@ -170,7 +170,7 @@ func smagicOK(n uint, c int64) bool {
 	return c&(c-1) != 0
 }
 
-// smagicOKn reports whether we should strength reduce an signed n-bit divide by c.
+// smagicOKn reports whether we should strength reduce a signed n-bit divide by c.
 func smagicOK8(c int8) bool   { return smagicOK(8, int64(c)) }
 func smagicOK16(c int16) bool { return smagicOK(16, int64(c)) }
 func smagicOK32(c int32) bool { return smagicOK(32, int64(c)) }

src/cmd/compile/internal/types2/builtins.go

@@ -954,7 +954,7 @@ func hasVarSize(t Type, seen map[*Named]bool) (varSized bool) {
 }
 
 // applyTypeFunc applies f to x. If x is a type parameter,
-// the result is a type parameter constrained by an new
+// the result is a type parameter constrained by a new
 // interface bound. The type bounds for that interface
 // are computed by applying f to each of the type bounds
 // of x. If any of these applications of f return nil,

src/cmd/compile/internal/walk/closure.go

@@ -144,7 +144,7 @@ func walkClosure(clo *ir.ClosureExpr, init *ir.Nodes) ir.Node {
 	return walkExpr(cfn, init)
 }
 
-// closureArgs returns a slice of expressions that an be used to
+// closureArgs returns a slice of expressions that can be used to
 // initialize the given closure's free variables. These correspond
 // one-to-one with the variables in clo.Func.ClosureVars, and will be
 // either an ONAME node (if the variable is captured by value) or an

src/cmd/internal/obj/loong64/obj.go

@@ -290,7 +290,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
 				//	NOP
 				//
 				// The NOP is needed to give the jumps somewhere to land.
-				// It is a liblink NOP, not an hardware NOP: it encodes to 0 instruction bytes.
+				// It is a liblink NOP, not a hardware NOP: it encodes to 0 instruction bytes.
 				//
 				// We don't generate this for leafs because that means the wrapped
 				// function was inlined into the wrapper.

src/cmd/link/internal/loader/loader.go

@@ -988,7 +988,7 @@ func (l *Loader) AttrExternal(i Sym) bool {
 	return l.attrExternal.Has(l.extIndex(i))
 }
 
-// SetAttrExternal sets the "external" property for an host object
+// SetAttrExternal sets the "external" property for a host object
 // symbol (see AttrExternal).
 func (l *Loader) SetAttrExternal(i Sym, v bool) {
 	if !l.IsExternal(i) {

src/go/types/builtins.go

@@ -953,7 +953,7 @@ func hasVarSize(t Type, seen map[*Named]bool) (varSized bool) {
 }
 
 // applyTypeFunc applies f to x. If x is a type parameter,
-// the result is a type parameter constrained by an new
+// the result is a type parameter constrained by a new
 // interface bound. The type bounds for that interface
 // are computed by applying f to each of the type bounds
 // of x. If any of these applications of f return nil,

src/net/conf.go

@@ -522,7 +522,7 @@ func isGateway(h string) bool {
 	return stringsEqualFold(h, "_gateway")
 }
 
-// isOutbound reports whether h should be considered a "outbound"
+// isOutbound reports whether h should be considered an "outbound"
 // name for the myhostname NSS module.
 func isOutbound(h string) bool {
 	return stringsEqualFold(h, "_outbound")