Add continuation indent for wrapped type aliases

#KT-21078 Fixed

fixup type alias

idea/formatter/src/org/jetbrains/kotlin/idea/formatter/KotlinCommonBlock.kt

@@ -539,7 +539,12 @@ private val INDENT_RULES = arrayOf<NodeIndentStrategy>(
         strategy("Array literals")
                 .within(KtNodeTypes.COLLECTION_LITERAL_EXPRESSION)
                 .notForType(LBRACKET, RBRACKET)
-                .set(Indent.getNormalIndent())
+                .set(Indent.getNormalIndent()),
+
+        strategy("Type aliases")
+                .within(KtNodeTypes.TYPEALIAS)
+                .notForType(KtTokens.TYPE_ALIAS_KEYWORD, KtTokens.EOL_COMMENT, KtNodeTypes.MODIFIER_LIST)
+                .set(Indent.getContinuationIndent())
 )
 
 

idea/testData/formatter/TypeAliasSpacing.after.kt

@@ -4,11 +4,11 @@ typealias B = Int
 typealias C = Int
 
 typealias D =
-Int
+        Int
 
 //
 typealias E =
-Int
+        Int
 
 typealias F = Int
 //
@@ -33,4 +33,6 @@ typealias K = Int
 
 //
 object OO
-typealias L = Int
+typealias L = Int
+
+internal typealias M = Int

idea/testData/formatter/TypeAliasSpacing.kt

@@ -25,4 +25,6 @@ class Y
 typealias K = Int
 //
 object OO
-typealias L = Int
+typealias L = Int
+
+internal typealias M = Int