Simplify control flow for #include <lib>

src/providers/defProvider.ts

@@ -104,7 +104,7 @@ export class DefProvider implements vscode.DefinitionProvider {
 
 /**
  * If the position is on an `#Include` line
- * and the included path* is an existing file,
+ * and the included path* is an existing file (not a directory or library include),
  * returns a Location at the beginning of the included file.
  *
  * Otherwise returns undefined.
@@ -113,7 +113,7 @@ export class DefProvider implements vscode.DefinitionProvider {
  * - A_WorkingDir === A_ScriptDir
  * - No previous `#Include Directory` lines changing the "include working directory"
  *
- * todo remove tryGetFileLink assumptions
+ * todo remove tryGetFileLink assumptions listed above
  */
 export async function tryGetFileLink(
     /**

src/providers/defProvider.utils.ts

@@ -61,7 +61,7 @@ export const resolveIncludedPath = (
     ahkLine: string,
 ): string | undefined => {
     const includedPath = getIncludedPath(ahkLine);
-    if (!includedPath) return undefined;
+    if (!includedPath || includedPath.startsWith('<')) return undefined;
 
     /** @example 'c:/path/to' */
     const parentGoodPath = basePath.substring(1, basePath.lastIndexOf('/'));