Fix bracket pair + tree-sitter freeze (microsoft#229809)

Fixes microsoft#229808

Author: alexr00

src/vs/workbench/services/treeSitter/browser/treeSitterTokenizationFeature.ts

@@ -244,10 +244,14 @@ class TreeSitterTokenizationSupport extends Disposable implements ITreeSitterTok
 			endOffsetsAndScopes[tokenIndex].endOffset = lineLength;
 		}
 
-		const tokens: Uint32Array = new Uint32Array(endOffsetsAndScopes.length * 2);
-		for (let i = 0; i < endOffsetsAndScopes.length; i++) {
-			tokens[i * 2] = endOffsetsAndScopes[i].endOffset;
-			tokens[i * 2 + 1] = findMetadata(this._colorThemeData, endOffsetsAndScopes[i].scopes, encodedLanguageId);
+		const tokens: Uint32Array = new Uint32Array((tokenIndex) * 2);
+		for (let i = 0; i < tokenIndex; i++) {
+			const token = endOffsetsAndScopes[i];
+			if (token.endOffset === 0 && token.scopes.length === 0) {
+				break;
+			}
+			tokens[i * 2] = token.endOffset;
+			tokens[i * 2 + 1] = findMetadata(this._colorThemeData, token.scopes, encodedLanguageId);
 		}
 
 		return tokens;