Trim away correct path separator according to host system

Otherwise assembly path given to backend on decompilation could get
invalid on Windows systems.

Author: Rpinski

vscode-extension/src/decompiler/nodeUri.ts

@@ -64,15 +64,15 @@ export function uriToNode(uri: vscode.Uri): NodeMetadata | undefined {
 
 function trimLeadingSlashes(input: string) {
   let result = input;
-  if (result.startsWith("/")) {
+  if (result.startsWith(path.sep)) {
     result = result.substring(1);
   }
   return result;
 }
 
 function trimTrailingSlashes(input: string) {
   let result = input;
-  if (result.endsWith("/")) {
+  if (result.endsWith(path.sep)) {
     result = result.slice(0, -1);
   }
   return result;