fix(c,cpp,fsharp,idl,powershell,sql,systemtap): remove unneeded escapes

runtime/queries/c/injections.scm

@@ -9,7 +9,7 @@
   (#set! injection.language "re2c"))
 
 ((comment) @injection.content
-  (#lua-match? @injection.content "/[*\/][!*\/]<?[^a-zA-Z]")
+  (#lua-match? @injection.content "/[*/][!*/]<?[^a-zA-Z]")
   (#set! injection.language "doxygen"))
 
 ((call_expression

runtime/queries/cpp/injections.scm

@@ -1,7 +1,7 @@
 ; inherits: c
 
 ((comment) @injection.content
-  (#lua-match? @injection.content "/[*\/][!*\/]<?[^a-zA-Z]")
+  (#lua-match? @injection.content "/[*/][!*/]<?[^a-zA-Z]")
   (#set! injection.language "doxygen"))
 
 (raw_string_literal

runtime/queries/fsharp/highlights.scm

@@ -123,7 +123,7 @@
 ((argument_patterns
   (long_identifier
     (identifier) @character.special))
-  (#lua-match? @character.special "^\_.*"))
+  (#lua-match? @character.special "^_.*"))
 
 (member_defn
   (method_or_prop_defn

runtime/queries/idl/injections.scm

@@ -1,8 +1,8 @@
 ((comment) @injection.content
-  (#lua-match? @injection.content "/[*\/][!*\/]<?[^a-zA-Z]")
+  (#lua-match? @injection.content "/[*/][!*/]<?[^a-zA-Z]")
   (#set! injection.language "doxygen"))
 
 ((comment) @injection.content
-  (#not-lua-match? @injection.content "/[*\/][!*\/]<?[^a-zA-Z]")
+  (#not-lua-match? @injection.content "/[*/][!*/]<?[^a-zA-Z]")
   (#not-lua-match? @injection.content "//@[a-zA-Z]")
   (#set! injection.language "comment"))

runtime/queries/powershell/highlights.scm

@@ -142,7 +142,7 @@
     "$true"))
 
 ((variable) @variable.builtin
-  (#lua-match? @variable.builtin "^\$env:"))
+  (#lua-match? @variable.builtin "^$env:"))
 
 (data_name
   (simple_name) @constant)

runtime/queries/sql/highlights.scm

@@ -42,7 +42,7 @@
   (#lua-match? @number "^%d+$"))
 
 ((literal) @number.float
-  (#lua-match? @number.float "^[-]?%d*\.%d*$"))
+  (#lua-match? @number.float "^[-]?%d*%.%d*$"))
 
 (parameter) @variable.parameter
 

runtime/queries/systemtap/highlights.scm

@@ -43,7 +43,7 @@
     "sprintln"))
 
 ((identifier) @variable.builtin
-  (#lua-match? @variable.builtin "^\$+[0-9A-Z_a-z]+\$*$"))
+  (#lua-match? @variable.builtin "^$+[0-9A-Z_a-z]+$*$"))
 
 (shebang_line) @keyword.directive