Fix JetKeywordToken docstrings

They were flipped.

compiler/frontend/src/org/jetbrains/jet/lexer/JetKeywordToken.java

@@ -22,14 +22,14 @@ import org.jetbrains.annotations.NotNull;
 public class JetKeywordToken extends JetToken {
 
     /**
-     * Generate soft keyword (identifier that has a keyword meaning only in some contexts)
+     * Generate keyword (identifier that has a keyword meaning in all possible contexts)
      */
     public static JetKeywordToken keyword(String value) {
         return new JetKeywordToken(value, false);
     }
 
     /**
-     * Generate keyword (identifier that has a keyword meaning in all possible contexts)
+     * Generate soft keyword (identifier that has a keyword meaning only in some contexts)
      */
     public static JetKeywordToken softKeyword(String value) {
         return new JetKeywordToken(value, true);