Add intention to indent a raw string #KT-9943 Fixed

idea/testData/intentions/indentRawString/.intention

@@ -0,0 +1 @@
+org.jetbrains.kotlin.idea.intentions.IndentRawStringIntention

idea/testData/intentions/indentRawString/hasIndent.kt

@@ -0,0 +1,6 @@
+// IS_APPLICABLE: false
+fun test() {
+    val foo = <caret>"""foo
+    bar
+baz"""
+}

idea/testData/intentions/indentRawString/notRawString.kt

@@ -0,0 +1,4 @@
+// IS_APPLICABLE: false
+fun test() {
+    val foo = <caret>"foo"
+}

idea/testData/intentions/indentRawString/receiver.kt

@@ -0,0 +1,7 @@
+// IS_APPLICABLE: false
+// WITH_RUNTIME
+fun test() {
+    val foo = <caret>"""foo
+bar
+baz""".trimIndent()
+}

idea/testData/intentions/indentRawString/simple.kt

@@ -0,0 +1,6 @@
+// WITH_RUNTIME
+fun test() {
+    val foo = <caret>"""foo
+bar
+baz"""
+}

idea/testData/intentions/indentRawString/simple.kt.after

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+fun test() {
+    val foo = """
+        foo
+        bar
+        baz
+        """.trimIndent()
+}

idea/testData/intentions/indentRawString/singleLine.kt

@@ -0,0 +1,4 @@
+// IS_APPLICABLE: false
+fun test() {
+    val foo = <caret>"""foo"""
+}