Enhance bindings for IDE hints

* Follow https://pkg.go.dev/cmd/go#hdr-Generate_Go_files_by_processing_source
  for leading comment
* Add godoc strings for all exposed methods for IDE support
* Copy field godoc strings into generated code as function godoc string
* Remove unused/unnecessary fields from generator.go structures
* Cleanup code regarding template usage

Signed-off-by: Jhon Honce <jhonce@redhat.com>

vendor/github.com/onsi/gomega/gstruct/pointer.go

@@ -0,0 +1,58 @@
+// untested sections: 3
+
+package gstruct
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/onsi/gomega/format"
+	"github.com/onsi/gomega/types"
+)
+
+//PointTo applies the given matcher to the value pointed to by actual. It fails if the pointer is
+//nil.
+//  actual := 5
+//  Expect(&actual).To(PointTo(Equal(5)))
+func PointTo(matcher types.GomegaMatcher) types.GomegaMatcher {
+	return &PointerMatcher{
+		Matcher: matcher,
+	}
+}
+
+type PointerMatcher struct {
+	Matcher types.GomegaMatcher
+
+	// Failure message.
+	failure string
+}
+
+func (m *PointerMatcher) Match(actual interface{}) (bool, error) {
+	val := reflect.ValueOf(actual)
+
+	// return error if actual type is not a pointer
+	if val.Kind() != reflect.Ptr {
+		return false, fmt.Errorf("PointerMatcher expects a pointer but we have '%s'", val.Kind())
+	}
+
+	if !val.IsValid() || val.IsNil() {
+		m.failure = format.Message(actual, "not to be <nil>")
+		return false, nil
+	}
+
+	// Forward the value.
+	elem := val.Elem().Interface()
+	match, err := m.Matcher.Match(elem)
+	if !match {
+		m.failure = m.Matcher.FailureMessage(elem)
+	}
+	return match, err
+}
+
+func (m *PointerMatcher) FailureMessage(_ interface{}) (message string) {
+	return m.failure
+}
+
+func (m *PointerMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return m.Matcher.NegatedFailureMessage(actual)
+}