migrate some String to multi dollar string interpolation

Author: koperagen

core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/impl/api/parse.kt

@@ -348,7 +348,7 @@ internal object Parsers : GlobalParserOptions {
     private val readJsonStrAnyFrame: ((text: String) -> AnyFrame)? by lazy {
         try {
             val klass = Class.forName("org.jetbrains.kotlinx.dataframe.io.JsonKt")
-            val typeClashTactic = Class.forName("org.jetbrains.kotlinx.dataframe.io.JSON\$TypeClashTactic")
+            val typeClashTactic = Class.forName($$"org.jetbrains.kotlinx.dataframe.io.JSON$TypeClashTactic")
             val readJsonStr = klass.getMethod(
                 "readJsonStr",
                 // this =

plugins/symbol-processor/src/test/kotlin/org/jetbrains/dataframe/ksp/DataFrameJdbcSymbolProcessorTest.kt

@@ -30,7 +30,7 @@ class DataFrameJdbcSymbolProcessorTest {
             import org.jetbrains.kotlinx.dataframe.* 
             """.trimIndent()
 
-        const val GENERATED_FILE = "HelloJdbc${'$'}Extensions.kt"
+        const val GENERATED_FILE = $$"HelloJdbc$Extensions.kt"
 
         @JvmStatic
         @BeforeClass

plugins/symbol-processor/src/test/kotlin/org/jetbrains/dataframe/ksp/DataFrameSymbolProcessorTest.kt

@@ -26,7 +26,7 @@ class DataFrameSymbolProcessorTest {
             import org.jetbrains.kotlinx.dataframe.* 
             """.trimIndent()
 
-        const val GENERATED_FILE = "Hello${'$'}Extensions.kt"
+        const val GENERATED_FILE = $$"Hello$Extensions.kt"
     }
 
     @Before
@@ -1187,11 +1187,11 @@ class DataFrameSymbolProcessorTest {
                 it.forAtLeastOne { it shouldContain "Pet" }
                 it.forAtLeastOne { it shouldContain "Error" }
             }
-            result.inspectLines("org.example.Petstore.Pet\$Extensions.kt") {
+            result.inspectLines($$"org.example.Petstore.Pet$Extensions.kt") {
                 it.forAtLeastOne { it shouldContain "tag" }
                 it.forAtLeastOne { it shouldContain "id" }
             }
-            result.inspectLines("org.example.Petstore.Error\$Extensions.kt") {
+            result.inspectLines($$"org.example.Petstore.Error$Extensions.kt") {
                 it.forAtLeastOne { it shouldContain "message" }
                 it.forAtLeastOne { it shouldContain "code" }
             }
@@ -1307,11 +1307,11 @@ class DataFrameSymbolProcessorTest {
                 it.forAtLeastOne { it shouldContain "readJson" }
                 it.forAtLeastOne { it shouldContain "readJsonStr" }
             }
-            result.inspectLines("org.example.Petstore.Pet\$Extensions.kt") {
+            result.inspectLines($$"org.example.Petstore.Pet$Extensions.kt") {
                 it.forAtLeastOne { it shouldContain "tag" }
                 it.forAtLeastOne { it shouldContain "id" }
             }
-            result.inspectLines("org.example.Petstore.Error\$Extensions.kt") {
+            result.inspectLines($$"org.example.Petstore.Error$Extensions.kt") {
                 it.forAtLeastOne { it shouldContain "message" }
                 it.forAtLeastOne { it shouldContain "code" }
             }