Optimize many syntax highlighting files and fix the '/' char of SQL

Summary:
Some suggested optimizations of D10621.

Note:

<keywords additionalDeliminator="@" weakDeliminator=";" />

Using KDE Frameworks 5.44, the above is only applied to the 'keywords' rules. However, when you run ./bin/testhighlighter_test,./bin/folding_test & ./bin/htmlhighlighter_test, it also applies to the delimiters of the 'WordDetect' rules.
This generates an error when I run testing binaries on the test.sql_oracle file, in the last line end; (<RegExpr String="\bend\b" ../> is changed to WordDetect and ';' is not delimiter). The test files with the problem are included.

The only files where RegExpr is changed for WordDetect (with the delimiters modified) are sql*.xml and rhtml.xml. I do not know if it will be necessary to undo these changes or it is just a problem of the test generator.

Fix in SQL:
Fix bug in sql-mysql.xml, sql-postgresql.xml & sql.xml files: The single character '/' on a new line (rule: <RegExpr String="^/$" ../>) is not highlighted, because it has conflict with the '/' keyword in the "operators" list. This rule is replaced by LineContinue (with column=0) and placed before the rule <keyword String="operators" ../>.

• sql-mysql.xml
  • [Line 481] RegExpr -> [Line 394] LineContinue.
• sql-postgresql.xml
  • [761] RegExpr -> [744] LineContinue.
• sql.xml
  • [914] RegExpr -> [897] LineContinue.

Files changed:

• prolog.xml
• pug.xml
  • [Line 36] RegExpr "\belse if\b" is replaced with "\belse\s+if\b". It is much more appropriate than using WordDetect, since it is JavaScript code (is Node.js)
• qml.xml
• r.xml
• rest.xml
  • [Lines 39-40] Merge RegExpr rules.
• rhtml.xml
  • [Lines 586-587] Merge RegExpr rules.
• rpmspec.xml
• ruby.xml
• sisu.xml
• sql-mysql.xml
• sql-oracle.xml
• sql-postgresql.xml
• sql.xml
• tads3.xml
• tcl.xml
• template-toolkit.xml
  • Duplicate rules are deleted.
• textile.xml
  • [Lines 36-39] Merge RegExpr rules.
• varnishtest.xml
• varnishtest4.xml
• vhdl.xml
  • [Lines 511-514] Merge RegExpr rules.
• wml.xml
• xharbour.xml
  • [Line 491] RegExpr ("\d+") -> Int
• xmldebug.xml
  • RegExpr ("\s+") -> DetectSpaces
• zsh.xml
  • RegExpr ("[A-Za-z_]\w*") -> DetectIdentifier

Test Plan: I tried most of the changes to avoid problems.

Reviewers: Framework: Syntax Highlighting, dhaumann

Reviewed By: Framework: Syntax Highlighting, dhaumann

Subscribers: kwrite-devel, kde-frameworks-devel, dhaumann

Tags: Frameworks, Framework: Syntax Highlighting, Kate

Differential Revision: https://phabricator.kde.org/D11543