Parse const as soft modifier keyword

compiler/frontend/src/org/jetbrains/kotlin/lexer/JetTokens.java

@@ -177,6 +177,8 @@ public interface JetTokens {
     JetModifierKeywordToken ANNOTATION_KEYWORD    = JetModifierKeywordToken.softKeywordModifier("annotation");
     JetModifierKeywordToken CROSSINLINE_KEYWORD    = JetModifierKeywordToken.softKeywordModifier("crossinline");
 
+    JetModifierKeywordToken CONST_KEYWORD = JetModifierKeywordToken.softKeywordModifier("const");
+
     TokenSet KEYWORDS = TokenSet.create(PACKAGE_KEYWORD, AS_KEYWORD, TYPE_ALIAS_KEYWORD, CLASS_KEYWORD, INTERFACE_KEYWORD,
                                         THIS_KEYWORD, SUPER_KEYWORD, VAL_KEYWORD, VAR_KEYWORD, FUN_KEYWORD, FOR_KEYWORD,
                                         NULL_KEYWORD,
@@ -194,7 +196,7 @@ public interface JetTokens {
                                              FIELD_KEYWORD, PROPERTY_KEYWORD, RECEIVER_KEYWORD, PARAM_KEYWORD, SPARAM_KEYWORD,
                                              LATE_INIT_KEYWORD,
                                              DATA_KEYWORD, INLINE_KEYWORD, NOINLINE_KEYWORD, TAILREC_KEYWORD, EXTERNAL_KEYWORD,
-                                             ANNOTATION_KEYWORD, CROSSINLINE_KEYWORD
+                                             ANNOTATION_KEYWORD, CROSSINLINE_KEYWORD, CONST_KEYWORD
     );
 
     /*
@@ -207,7 +209,8 @@ public interface JetTokens {
                     ABSTRACT_KEYWORD, ENUM_KEYWORD, OPEN_KEYWORD, INNER_KEYWORD, OVERRIDE_KEYWORD, PRIVATE_KEYWORD,
                     PUBLIC_KEYWORD, INTERNAL_KEYWORD, PROTECTED_KEYWORD, OUT_KEYWORD, IN_KEYWORD, FINAL_KEYWORD, VARARG_KEYWORD,
                     REIFIED_KEYWORD, COMPANION_KEYWORD, SEALED_KEYWORD, LATE_INIT_KEYWORD,
-                    DATA_KEYWORD, INLINE_KEYWORD, NOINLINE_KEYWORD, TAILREC_KEYWORD, EXTERNAL_KEYWORD, ANNOTATION_KEYWORD, CROSSINLINE_KEYWORD
+                    DATA_KEYWORD, INLINE_KEYWORD, NOINLINE_KEYWORD, TAILREC_KEYWORD, EXTERNAL_KEYWORD, ANNOTATION_KEYWORD, CROSSINLINE_KEYWORD,
+                    CONST_KEYWORD
             };
 
     // Please synchronize this array with org.jetbrains.kotlin.descriptors.annotations.ANNOTATION_MODIFIERS_FQ_NAMES

compiler/frontend/src/org/jetbrains/kotlin/psi/stubs/elements/JetFileElementType.java

@@ -34,7 +34,7 @@ import org.jetbrains.kotlin.psi.stubs.KotlinFileStub;
 import java.io.IOException;
 
 public class JetFileElementType extends IStubFileElementType<KotlinFileStub> {
-    public static final int STUB_VERSION = 57;
+    public static final int STUB_VERSION = 58;
 
     private static final String NAME = "kotlin.FILE";