Fix gerardroche#9 if outside a boundary should not be a keyword

Author: gerardroche

Pine.sublime-syntax

@@ -195,7 +195,7 @@ contexts:
     - match: \b(//@version=5|export|import|series|simple|switch|)\b
       scope: keyword.control.import.pine
 
-    - match: (|if|else|for|for...in|while)
+    - match: \b(if|else|for|for...in|while)\b
       scope: keyword.control.conditional.pine
 
   # functions

syntax_test.pine

@@ -158,3 +158,7 @@ plot(macd, color=color.blue)
 //               ^^^^^^^^^^ constant.language
 plot(signal, color=color.orange)
 //                 ^^^^^^^^^^^^ constant.language
+
+// https://github.com/gerardroche/sublime-pine/issues/9
+backtest_safety = bb_bands_diff
+//                         ^^^^ -keyword