[#54] Adjust syntax for import_clause_identifier_pair (#55)

Author: jonhue

grammar.js

@@ -75,7 +75,7 @@ module.exports = grammar({
     ),
     import_clause_identifier_pair: $ => seq(
       field('left', $.identifier),
-      '=>',
+      '->',
       field('right', $.identifier)
     ),
 

test/corpus/statements.txt

@@ -2,7 +2,7 @@
 import
 ==================
 
-import {a => b, c} from 'source'
+import {a -> b, c} from 'source'
 
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