Update ExtractorInformation.expected

Author: smowton

java/ql/integration-tests/all-platforms/java/buildless-erroneous/ExtractorInformation.expected

@@ -12,6 +12,7 @@
 | Number of lines of code | 7 |
 | Number of lines of code with extension java | 7 |
 | Percentage of calls with call target | 20 |
+| Percentage of expressions with known type | 14 |
 | Total number of diagnostics from CodeQL Java extractor | 12 |
 | Total number of lines | 13 |
 | Total number of lines with extension java | 13 |