Rust: Re-enable special casing in indexing for Vec

Author: paldepind

rust/ql/lib/codeql/rust/internal/TypeInference.qll

@@ -1132,6 +1132,8 @@ private Type inferIndexExprType(IndexExpr ie, TypePath path) {
     ) and
     result = inferType(ie.getBase(), exprPath)
   |
+    exprPath.isCons(any(Vec v).getElementTypeParameter(), path)
+    or
     exprPath.isCons(any(ArrayTypeParameter tp), path)
     or
     exists(TypePath path0 |
@@ -1602,8 +1604,8 @@ private module Debug {
   private Locatable getRelevantLocatable() {
     exists(string filepath, int startline, int startcolumn, int endline, int endcolumn |
       result.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn) and
-      filepath.matches("%/sqlx.rs") and
-      startline = [56 .. 60]
+      filepath.matches("%/test.rs") and
+      startline = [280 .. 280]
     )
   }