Replace function by method

Signed-off-by: Roman Nikitenko <rnikiten@redhat.com>

Author: RomanNikitenko

packages/languages/src/browser/workspace-symbols.ts

@@ -125,7 +125,7 @@ export class WorkspaceSymbolCommand implements QuickOpenModel, CommandContributi
 
     protected createItem(sym: SymbolInformation, provider: WorkspaceSymbolProvider, token: CancellationToken): QuickOpenItem {
         const uri = new URI(sym.location.uri);
-        const icon = toCssClassName(sym.kind) || 'unknown';
+        const icon = this.toCssClassName(sym.kind) || 'unknown';
         let parent = sym.containerName;
         if (parent) {
             parent += ' - ';
@@ -149,6 +149,14 @@ export class WorkspaceSymbolCommand implements QuickOpenModel, CommandContributi
         });
     }
 
+    protected toCssClassName(symbolKind: SymbolKind, inline?: boolean): string | undefined {
+        const kind = SymbolKind[symbolKind];
+        if (!kind) {
+            return undefined;
+        }
+        return `codicon ${inline ? 'inline' : 'block'} codicon-symbol-${kind.toLowerCase() || 'property'}`;
+    }
+
     private openURL(uri: URI, start: Position, end: Position): void {
         this.openerService.getOpener(uri).then(opener => opener.open(uri, {
             selection: Range.create(start, end)
@@ -230,11 +238,3 @@ enum SymbolKind {
     Operator = 25,
     TypeParameter = 26
 }
-
-export function toCssClassName(symbolKind: SymbolKind, inline?: boolean): string | undefined {
-    const kind = SymbolKind[symbolKind];
-    if (!kind) {
-        return undefined;
-    }
-    return `codicon ${inline ? 'inline' : 'block'} codicon-symbol-${kind.toLowerCase() || 'property'}`;
-}