SpEL Syntax Highlighting

[BoykoAlex]

SpEL syntax highlighting via LSP semantic tokens inside:

• Java annotations
• Inside JPQL queries

[BoykoAlex]

I took the Antlr SPEL parser that was kept from the past and it doesn't seem to parse all valid SPEL. For example someBean.someProperty != null ? someBean.someProperty : 'default' also i didn't see matches keyword in the parser hence I suspect that this won't parse either: '100' matches '\\d+'.
Definitely won't be completed for 4.23.0

[BoykoAlex]

Fixed with 15f20b6 exceptfor embedded inside SQL queries which is be addressed via #1270