During the work for JDK-8055080 for creation of golden files for negative tests, it was suggested to update the wording for the following error key:

Parens1.java:12:20: compiler.err.illegal.start.of.type
Code: String s = (Integer).toString(123);

Test: tools/javac/Parens1.java
Suggestion for the new error key: "illegal.parenthesized.expression" instead of "illegal.start.of.type"
Golden file will need to be updated once the error key is updated.