feat: add parsers and queries for apex, sosl, soql (#5396)

queries/apex/locals.scm

@@ -0,0 +1,66 @@
+; declarations
+
+(class_declaration) @scope
+(method_declaration) @scope
+(constructor_declaration) @scope
+(enum_declaration) @scope
+(enhanced_for_statement) @scope
+
+; if/else
+
+(if_statement) @scope
+(if_statement
+  consequence: (_) @scope) ; if body in case there are no braces
+(if_statement
+  alternative: (_) @scope) ; else body in case there are no braces
+
+; try/catch
+
+(try_statement) @scope ; covers try+catch, individual try and catch are covered by (block)
+(catch_clause) @scope ; needed because `Exception` variable
+
+; loops
+
+(for_statement) @scope
+(for_statement         ; "for" body in case there are no braces
+  body: (_) @scope)
+(do_statement
+  body: (_) @scope)
+(while_statement
+  body: (_) @scope)
+
+; Functions
+
+(constructor_declaration) @scope
+(method_declaration) @scope
+
+;; definitions
+
+(enum_declaration
+  name: (identifier) @definition.enum)
+
+(method_declaration
+  name: (identifier) @definition.method)
+
+(local_variable_declaration
+  declarator: (variable_declarator
+    name: (identifier) @definition.var))
+
+(enhanced_for_statement 
+  name: (identifier) @definition.var)
+
+(formal_parameter
+  name: (identifier) @definition.parameter)
+
+(catch_formal_parameter
+  name: (identifier) @definition.parameter)
+
+(field_declaration
+  declarator: (variable_declarator
+    name: (identifier) @definition.field))
+
+;; REFERENCES
+
+(identifier) @reference
+
+(type_identifier) @reference