[formatter] add tests for line indent after properties

^KT-42560

idea/testData/indentationOnNewline/AfterExtensionPropertyGetter.after.kt

@@ -0,0 +1,5 @@
+var String.foo: Int
+    get() = length
+<caret>
+
+// WITHOUT_CUSTOM_LINE_INDENT_PROVIDER

idea/testData/indentationOnNewline/AfterExtensionPropertyGetter.kt

@@ -0,0 +1,4 @@
+var String.foo: Int
+    get() = length<caret>
+
+// WITHOUT_CUSTOM_LINE_INDENT_PROVIDER

idea/testData/indentationOnNewline/AfterExtensionPropertySetter.after.kt

@@ -0,0 +1,5 @@
+var String.foo: Int
+    set(value) {}
+<caret>
+
+// WITHOUT_CUSTOM_LINE_INDENT_PROVIDER

idea/testData/indentationOnNewline/AfterExtensionPropertySetter.kt

@@ -0,0 +1,4 @@
+var String.foo: Int
+    set(value) {}<caret>
+
+// WITHOUT_CUSTOM_LINE_INDENT_PROVIDER

idea/testData/indentationOnNewline/AfterPropertyGetter.after.kt

@@ -0,0 +1,5 @@
+var foo: Int
+    get() = length
+<caret>
+
+// WITHOUT_CUSTOM_LINE_INDENT_PROVIDER

idea/testData/indentationOnNewline/AfterPropertyGetter.kt

@@ -0,0 +1,4 @@
+var foo: Int
+    get() = length<caret>
+
+// WITHOUT_CUSTOM_LINE_INDENT_PROVIDER

idea/testData/indentationOnNewline/AfterPropertySetter.after.kt

@@ -0,0 +1,5 @@
+var foo: Int
+    set(value) {}
+<caret>
+
+// WITHOUT_CUSTOM_LINE_INDENT_PROVIDER

idea/testData/indentationOnNewline/AfterPropertySetter.kt

@@ -0,0 +1,4 @@
+var foo: Int
+    set(value) {}<caret>
+
+// WITHOUT_CUSTOM_LINE_INDENT_PROVIDER