fix(core, expr grammars): fix reported bugs

[hkimura-intersys]

Overview

This PR fixes parser bugs found while testing against generated INT files in %SYS, and adds targeted coverage for each scenario that was corrected.

Summary of Changes

Expression and Reference Parsing

• Allow s% in instance variables. s is a valid instance-variable prefix for the shadow modified bit.
• Allow global variable namespaces to be arbitrary expression lists, so cases like ^|"^^" _ $zu(12)|globalname parse correctly.
• Relax relative-dot parsing so the member name must be immediate after .., but the .. itself does not need to be immediate. This fixes multiline cases such as ..#MyParameter inside $CASE.
• Allow class names to be quoted when used in class references.
• Extend routine reference support to handle forms such as @(tFlags)^@(tI)(.tResult).
• Allow namespace expressions with subscripts in line references, such as ^|nodes(name)|s.
• Allow ^$|...| references in SET statements.

Command and Statement Fixes

• Allow relative-dot expressions and system-defined functions in additional command contexts, including LOCK, KILL, DO, and SET.
• Allow relative-dot methods as set_argument targets, for example set ..token($Increment(..token)) = tLexTerminator.
• Support valid special-case dotted DO syntax such as:

if x = 1 { w "hello" } else { s x = 1 d }
. w "goodbye"

• Add support for MVPRINT, MVP, MVC, and MvCall.
• Allow ZKILL flags 1-3.
• Allow I as a valid CLOSE option, for example close x:"I".
• Allow multiple VIEW arguments separated by comments.
• Fix dotted statement parsing of blocks to allow blocks on the same line and multiline dotted blocks.
• Allow more general indirections in NEW, for example new @("hi"_y).
• Allow dots in tag names, for example tag.x.
• Allow JOB process-parens to take an lvn.

OREF, OLE, JSON, and Argument Handling

• Broaden OREF-chain handling in places that previously rejected valid object access patterns.
• Allow JSON arrays in OREF chain expressions.
• Update OLE parsing to allow _var and _var!member forms such as _CDSrvPrint!txtPrint.Text.
• Allow by-reference arguments to use instance variables and system-defined variables.
• Allow variadic arguments in device keywords.
• Allow device keyword values to be separated by commas and to include string literals.

Locktype and Pattern Updates

• Expand locktype parsing to allow relative-dot expressions, instance variables, system-defined functions, and additional lvn_SEID / quoted SEID forms.
• Extend pattern-expression token handling by one more nesting level to cover deeper valid patterns.
• Allow numeric literals like 0..

Scanner and Tokenization Fixes

• Fix bol_extra / dotted-line scanning so multiline expressions beginning with .. are not consumed incorrectly by the routine scanner.
• Fix # handling so # inside expressions is not eaten as whitespace or comment syntax.

UDL and Routine Header Updates

• Allow generated in routine headers, for example Routine x [TYPE=INT, Generated].
• Adjust UDL highlighting so method keywords are grouped with other class members and class keywords remain distinct.

Testing

• All repository test cases and workflows passed.
• Added targeted test coverage for each scenario fixed in this PR.
• Validated the parser against all generated INT files in %SYS (5664 files).
• tested this on all .rtn and .mac files from //projects/sql/databases/sys/rtn/routine/ and //projects/sql/databases/sys/rtn/sql/.