Only replace methodName prefix if would be empty

Some APIs like 'rollup.rollup' are the same as their namespace
and if we remove all occurrences of the namespace from the methodName
then it'd result in an empty string. If we hit a situation like this
only replace the namespace.

Author: sethmlarson

internal/cmd/generate/commands/genstruct/command.go

@@ -239,6 +239,11 @@ type API struct {
 			name := strings.ReplaceAll(e.Name(), "Request", "")
 			if strings.HasPrefix(strings.ToLower(name), strings.ToLower(n)) {
 				methodName := strings.ReplaceAll(name, n, "")
+				// Some methods are equal to the namespace (like 'rollup.rollup')
+				// and we don't want to have an empty string here.
+				if len(methodName) == 0 {
+				    methodName = strings.Replace(name, n, "", 1)
+				}
 				b.WriteString(fmt.Sprintf("\t%s %s\n", methodName, name))
 			}
 		}
@@ -271,6 +276,11 @@ func New(t Transport) *API {
 			name := strings.ReplaceAll(e.Name(), "Request", "")
 			if strings.HasPrefix(strings.ToLower(name), strings.ToLower(n)) {
 				methodName := strings.ReplaceAll(name, n, "")
+				// Some methods are equal to the namespace (like 'rollup.rollup')
+				// and we don't want to have an empty string here.
+				if len(methodName) == 0 {
+				    methodName = strings.Replace(name, n, "", 1)
+				}
 				b.WriteString(fmt.Sprintf("\t\t\t%s: new%sFunc(t),\n", methodName, name))
 			}
 		}

internal/cmd/generate/commands/gentests/skips.go

@@ -31,6 +31,8 @@ var skipFiles = []string{
 	"ml/evaluate_data_frame.yml", // Floats as map keys
 
 	"watcher/stats/10_basic.yml", // Sets "emit_stacktraces" as string ("true"), not bool
+	
+	"search.highlight/20_fvh.yml", // bad backslash
 }
 
 // TODO: Comments into descriptions for `Skip()`